{"title":"SR Indexable Thread Mill Inserts - Whitworth","description":"","products":[{"product_id":"12-19w","title":"Carmex Carbide Threading Inserts - Whitworth - TiAlN Coated - 12-19W","description":"\u003cdiv\u003e\n\u003cp\u003e\nCarmex Carbide Threading Inserts in Whitworth (TiAlN Coated, code 12-19W) are a versatile, high-performance solution for machinists needing reliable Whitworth-thread cutting across a range of common profiles. Built for durability and precision, these inserts are designed to streamline threading work on lathes and milling machines.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eLength options\u003c\/b\u003e: Five lengths spanning from 12 mm to 40 mm to fit different workpiece depths and profiles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThread profiles\u003c\/b\u003e: Coverage for all common thread forms, with Whitworth-focused compatibility for typical machining applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial and coating\u003c\/b\u003e: Carbide inserts with TiAlN coating that enhances wear resistance and enables higher-speed cutting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDouble‑sided cutting edges\u003c\/b\u003e: Each insert provides two cutting edges for extended life (except for BSPT\/NPT\/NPTF\/American Buttress\/API RD profiles).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal\/external capability\u003c\/b\u003e: For many thread profiles, the same insert can machine both internal and external threads (except ISO\/UN\/NPSM\/UNJ\/Acme).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePitch range compatibility\u003c\/b\u003e: Depending on length, supports pitches from 0.5 mm (32 TPI) up to 6.0 mm (4 TPI).\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nWhether you’re setting up routine maintenance, producing small lots, or performing on-demand repairs, these inserts deliver consistent thread quality with predictable wear. The TiAlN coating helps maintain shape and surface finish under demanding speeds and feeds, while the dual-cutting-edge design minimizes downtime by letting you re‑index edges rather than swapping tools. With a compact selection covering multiple lengths and pitch combinations, you can tackle a wide range of Whitworth-thread components with a single, reliable insert set.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316056797262,"sku":"12-19W","price":26.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_ad86ec97-33d2-4b67-adb4-998ff1b27592.jpg?v=1697553492"},{"product_id":"14-11w","title":"Carmex Carbide Threading Insert - Whitworth - TiAlN Coated - 14-11W","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Carmex Carbide Threading Insert – Whitworth is a TiAlN-coated carbide tool designed for precise Whitworth threading and other common profiles. It’s built for professionals who need reliable performance in turning centers and lathes.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003ePart code\u003c\/b\u003e: 14-11W\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCoating\u003c\/b\u003e: TiAlN-coated carbide for enhanced wear resistance and heat tolerance\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eProfile coverage\u003c\/b\u003e: Versatile collection that covers all common thread profiles in one lineup\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLengths\u003c\/b\u003e: Five lengths ranging from 12 mm to 40 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePitch range\u003c\/b\u003e: Depending on length, supports pitches from 0.5 mm \/ 32 TPI up to 6.0 mm \/ 4 TPI\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDouble-sided design\u003c\/b\u003e: Two cutting edges per insert (except BSPT\/NPT\/NPTF\/American Buttress\/API RD)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal\/External capability\u003c\/b\u003e: For many profiles, one insert can machine both internal and external threads (exceptions: ISO\/UN\/NPSM\/UNJ\/Acme)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial\u003c\/b\u003e: Robust carbide construction from Carmex for durable, consistent performance\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis insert lineup helps you streamline tooling, reduce downtime, and maintain consistent thread quality across a wide range of standard forms. The TiAlN coating improves heat resistance and wear life, allowing you to work efficiently at productive speeds. With dual cutting edges and broad internal\/external versatility, you gain greater flexibility for threading tasks—from repair work to prototype runs—without swapping inserts.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316056830030,"sku":"14-11W","price":34.92,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_9d136a95-67ea-4647-9be4-9ee259d38e98.jpg?v=1697553496"},{"product_id":"14-14w","title":"Carmex Carbide Threading Insert - Whitworth - TiAlN Coated - 14-14W","description":"\u003cdiv\u003e\n\u003cp\u003eThe Carmex Carbide Threading Insert, Whitworth - TiAlN Coated - 14-14W, is a versatile carbide solution built for machinists who need reliable, multi-profile threading performance with minimal tool changes.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eThread profiles covered\u003c\/b\u003e: A comprehensive collection designed to handle all common thread forms, simplifying setups for diverse projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLength options\u003c\/b\u003e: Available in five lengths from 12 mm to 40 mm to fit a wide range of machines and workpieces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePitch compatibility\u003c\/b\u003e: Depending on length, supports pitches from 0.5 mm (32 TPI) up to 6.0 mm (4 TPI) for broad threading possibilities.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDouble-edged design\u003c\/b\u003e: Each insert provides two cutting edges (except for BSPT\/NPT\/NPTF\/American Buttress\/API RD), maximizing tool life between flips.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal \u0026amp; external threading\u003c\/b\u003e: For many thread profiles, the same insert machine both internal and external threads (with some profile exceptions: ISO\/UN\/NPSM\/UNJ\/Acme).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCoating \u0026amp; material\u003c\/b\u003e: TiAlN-coated carbide delivers enhanced hardness and heat resistance for longer insert life in demanding cuts.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eDesigned to reduce tool changes and improve consistency, this Whitworth-specific insert combines versatility with durable performance. The TiAlN coating helps maintain sharpness under load, while the double-edged design and broad length\/pitch options enable efficient workflows across production runs, repairs, and prototyping. Whether you’re threading holes or shafts, this insert offers dependable results and adaptability for a range of Whitworth and common thread forms.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316056862798,"sku":"14-14W","price":26.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_a5f82bd5-95e3-4cc2-9cb9-10f2fb95fd5f.jpg?v=1697553499"},{"product_id":"14-16w","title":"Carmex Carbide Threading Insert - Whitworth - TiAlN Coated - 14-16W","description":"\u003cdiv\u003e\n\u003cp\u003eThe Carmex Carbide Threading Insert in Whitworth form is a TiAlN-coated carbide tool designed for precise, versatile threading on metal. Ideal for workshop machinists and job shops working with Whitworth threads, it delivers reliable performance across common thread profiles.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eThread profiles covered\u003c\/b\u003e: A versatile collection of threading inserts that covers all common thread profiles, with a focus on Whitworth forms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLength options\u003c\/b\u003e: Five lengths available from 12 mm to 40 mm to match your machining setup and pitch requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePitches supported\u003c\/b\u003e: Capable of handling pitches from 0.5 mm (32 TPI) to 6.0 mm (4 TPI) depending on the chosen length.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDouble-sided design\u003c\/b\u003e: Inserts are double-sided, offering two cutting edges for extended life (except for BSPT\/NPT\/NPTF\/American Buttress\/API RD).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal\/External capability\u003c\/b\u003e: For many thread profiles, the same insert can machine both internal and external threads (with exceptions for ISO\/UN\/NPSM\/UNJ\/Acme).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCoating and material\u003c\/b\u003e: TiAlN-coated carbide insert, delivering improved wear resistance and heat tolerance during demanding threading jobs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCode\u003c\/b\u003e: 14-16W sizing to fit a range of threading tools and holders.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThis single, TiAlN-coated insert handles a wide range of Whitworth and common thread profiles, reducing tool changes and inventory. The dual cutting edges extend usable life between regrinds, while the coating helps resist heat and wear during deeper cuts or higher-speed threading. Perfect for fabricating fasteners, repairing worn threads, or finishing components on lathes and CNC machines, it offers consistent performance and reliable results across typical workshop tasks.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316056895566,"sku":"14-16W","price":26.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_ab753049-be17-4d2b-9219-e7f73eeae24f.jpg?v=1697553503"},{"product_id":"14-19w","title":"Carmex Carbide Threading Insert - Whitworth - TiAlN Coated - 14-19W","description":"\u003cdiv\u003e\n\u003cp\u003eThe Carmex Carbide Threading Insert for Whitworth threading (TiAlN coated, 14-19W) is a versatile cutting solution designed for machinists who regularly work with standard thread profiles. Built for durability and precision, it delivers reliable performance across a range of pitches and applications.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eThread profiles covered\u003c\/b\u003e: Versatile inserts that handle all common thread profiles, including Whitworth.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFive length options\u003c\/b\u003e: Available in five lengths from 12 mm up to 40 mm to fit various tools and setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDouble-sided cutting edges\u003c\/b\u003e: Each insert provides two cutting edges for extended life (except for BSPT\/NPT\/NPTF\/American Buttress\/API RD).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal \u0026amp; external threading\u003c\/b\u003e: In many profiles, the same insert can machine both internal and external threads (exceptions: ISO\/UN\/NPSM\/UNJ\/Acme).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTiAlN coating\u003c\/b\u003e: Titanium aluminum nitride coating enhances wear resistance and heat tolerance for longer insert life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePitch range\u003c\/b\u003e: Suits pitches from 0.5 mm (32 TPI) to 6.0 mm (4 TPI), covering a broad set of standards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial\u003c\/b\u003e: Carbide insert built for rigidity and precision in demanding environments.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eDesigned to optimize threading performance, this insert supports consistent thread quality on Whitworth and other common forms, making it ideal for machine shops and production environments. The TiAlN coating helps resist heat buildup and wear, reducing downtime and extending the life of each edge. The five-length selection lets you tailor depth of cut and reach to your machine and workpiece, improving efficiency and reducing setup time. With dual cutting edges, you get more usable life per insert, lowering replacement frequency in demanding jobs such as valve bodies, fittings, housings, and fasteners. Choose the right length and pitch to match your target thread standard and tooling setup for best results.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316056928334,"sku":"14-19W","price":26.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_11d675a0-ac17-4814-b42a-b019217ead3d.jpg?v=1697553506"},{"product_id":"14-20w","title":"Carmex Carbide Threading Insert - Whitworth - TiAlN Coated - 14-20W","description":"\u003cdiv\u003e\n\u003cp\u003eCarmex Carbide Threading Insert for Whitworth and other common thread profiles offers a durable, versatile solution for professional machinists. TiAlN-coated carbide ensures reliable performance across a range of pitches and lengths, making it a practical choice for busy workshop environments.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eFive lengths\u003c\/b\u003e: available from 12 mm to 40 mm, enabling threading setups that span pitches from 0.5 mm (32 TPI) to 6.0 mm (4 TPI).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDouble-sided design\u003c\/b\u003e: two cutting edges extend tool life, with exceptions for BSPT\/NPT\/NPTF\/American Buttress\/API RD.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal\/external capability\u003c\/b\u003e: in many thread forms, a single insert can machine both internal and external threads (except ISO\/UN\/NPSM\/UNJ\/Acme).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWhitworth threading\u003c\/b\u003e: optimized for Whitworth and other common thread profiles, delivering consistent results.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTiAlN coating\u003c\/b\u003e: enhanced hardness and heat resistance for longer insert life and improved surface finish.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThis insert set minimizes tool changes and maximizes versatility on the shop floor. The double-edged design reduces downtime, while the broad length and pitch range covers a wide spectrum of threading tasks—from precise Whitworth bolts to standard, everyday thread forms. The TiAlN coating helps maintain cutting performance under heat, delivering reliable, repeatable results across multiple runs and setups.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316056961102,"sku":"14-20W","price":26.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_3a1e66f4-3842-41de-b190-dd7c944d359b.jpg?v=1697553509"},{"product_id":"14-24w","title":"Carmex Carbide Threading Insert - Whitworth - TiAlN Coated - 14-24W","description":"\u003cdiv\u003e\n\u003cp\u003eThe Carmex Carbide Threading Insert in Whitworth form offers a reliable, all-in-one threading solution for machinists who produce Whitworth and other common thread profiles. Coated with TiAlN for wear resistance, this insert is built for precision and longevity across multiple pitches and thread types.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eThread profiles\u003c\/b\u003e: A versatile collection of threading inserts covering all common thread profiles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLength options\u003c\/b\u003e: Five lengths from 12 mm to 40 mm to suit different toolholders and depth requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePitch range\u003c\/b\u003e: Handles pitches from 0.5 mm (32 TPI) up to 6.0 mm (4 TPI).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDouble-sided cutting edges\u003c\/b\u003e: Each insert provides two cutting edges for extended life (except for BSPT\/NPT\/NPTF\/American Buttress\/API RD).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal\/External capability\u003c\/b\u003e: For many thread profiles, the same insert can machine both internal and external threads (excluding ISO\/UN\/NPSM\/UNJ\/Acme).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCoating and material\u003c\/b\u003e: TiAlN-coated carbide for improved wear resistance and heat tolerance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSize\/Grade\u003c\/b\u003e: Whitworth 14-24W specification for compatibility with standard Whitworth tooling setups.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith these features, you gain consistent thread quality, reduced tool changes, and longer tool life in demanding turning and milling operations. The double-cut edges maximize material removal per edge, while the TiAlN coating lowers built-up edge and wear, helping you maintain tight tolerances on both internal and external threads. This insert is a practical choice for shop floors that balance legacy Whitworth work with modern threading needs, offering versatility without sacrificing precision.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316057026638,"sku":"14-24W","price":26.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_6256443d-adb8-47fb-8aad-a10731596589.jpg?v=1697553513"},{"product_id":"21-11w","title":"Carmex Carbide Threading Insert - Whitworth - TiAlN Coated - 21-11W","description":"\u003cdiv\u003e\n\u003cp\u003e\nIntroducing the Carmex Carbide Threading Insert - Whitworth - TiAlN Coated (21-11W): a durable, versatile carbide insert built for precision Whitworth threading and a broad range of common thread profiles. Designed for machinists and workshops that demand reliable performance in threading operations.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eTiAlN coating\u003c\/b\u003e: TiAlN coating enhances wear resistance and heat tolerance for longer tool life in demanding threading tasks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCarbide material\u003c\/b\u003e: Premium carbide construction delivers rigidity, accuracy, and smooth cuts for Whitworth and other standard thread profiles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFive length options\u003c\/b\u003e: Available in five lengths (12 mm to 40 mm) to fit different machines and thread engagements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePitch range compatibility\u003c\/b\u003e: Handles pitches from 0.5 mm (32 TPI) to 6.0 mm (4 TPI), depending on the chosen length.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDouble-sided cutting edges\u003c\/b\u003e: Each insert provides two cutting edges (except for BSPT\/NPT\/NPTF\/American Buttress\/API RD) to maximize usable life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal\/External capability\u003c\/b\u003e: In many profiles, the same insert can machine both internal and external threads (except ISO\/UN\/NPSM\/UNJ\/Acme).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWhitworth-focused\u003c\/b\u003e: Specifically optimized to produce accurate Whitworth thread forms with clean finishes.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis insert is designed to reduce tool changes and streamline setup by covering a wide range of thread profiles with a single, reliable solution. The TiAlN coating and carbide construction work together to deliver consistent performance, while the dual-edge design and broad pitch compatibility support efficient, high-quality threading across jobs. Ideal for precision threading in workshops and production environments where durability and accuracy matter.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316057387086,"sku":"21-11W","price":35.22,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_bcf48f4c-cf2a-4ee8-9e9a-4a32fc582094.jpg?v=1697553517"},{"product_id":"21-14w","title":"Carmex Carbide Threading Insert - Whitworth - TiAlN Coated - 21-14W","description":"\u003cdiv\u003e\n\u003cp\u003e\nCarmex Carbide Threading Insert - Whitworth - TiAlN Coated - 21-14W is a versatile carbide threading solution built for machinists who routinely cut Whitworth and other common thread forms. This TiAlN-coated insert delivers reliable performance across a range of pitches, with multiple cutting edges designed for efficiency and longevity.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eThread profiles covered\u003c\/b\u003e: A comprehensive set that handles all common thread profiles, including Whitworth, with pitches from 0.5 mm (32 TPI) up to 6.0 mm (4 TPI) depending on length.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLength options\u003c\/b\u003e: Five lengths ranging from 12 mm to 40 mm to fit a variety of tool holders and workpiece sizes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDouble-sided cutting edges\u003c\/b\u003e: Each insert provides two cutting edges for extended life and reduced downtime (except BSPT\/NPT\/NPTF\/American Buttress\/API RD).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal \u0026amp; external threading capability\u003c\/b\u003e: For many thread profiles, the same insert can machine both internal and external threads (note exceptions: ISO\/UN\/NPSM\/UNJ\/Acme).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTiAlN coating\u003c\/b\u003e: TiAlN coating enhances wear resistance and thermal stability to extend insert life in demanding materials.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nDesigned for precise, repeatable thread production on lathes and turning centers, the 21-14W insert provides dependable performance across a range of Whitworth and standard metric profiles. The combination of multiple edges, varied lengths, and a robust TiAlN coating helps you reduce tool changes, improve consistency, and achieve higher-quality threads in everyday manufacturing and retrofit applications.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316057419854,"sku":"21-14W","price":35.22,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_ee8c2a0b-d362-48b7-a35e-769a0946227d.jpg?v=1697553520"},{"product_id":"21-16w","title":"Carmex Carbide Threading Insert - Whitworth - TiAlN Coated - 21-16W","description":"\u003cdiv\u003e\n\u003cp\u003eCarmex Carbide Threading Insert in Whitworth form offers a durable, versatile solution for precision thread cutting across the most common profiles. Designed for machinists and workshops that need reliable performance, this TiAlN-coated insert delivers consistent results and extended edge life.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eThread profiles covered\u003c\/b\u003e: A versatile collection that spans all common thread profiles, simplifying tooling in mixed jobs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFive lengths\u003c\/b\u003e: Available in five lengths ranging from 12 mm to 40 mm to fit a variety of holders and applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePitch range\u003c\/b\u003e: Depending on length, capable of handling pitches from 0.5 mm \/ 32 TPI up to 6.0 mm \/ 4 TPI.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDouble-sided cutting edges\u003c\/b\u003e: Two cutting edges per insert (except for BSPT \/ NPT \/ NPTF \/ American Buttress \/ API RD), effectively doubling usable life between regrinds or replacements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal\/External threading compatibility\u003c\/b\u003e: For many thread profiles, the same insert can machine both internal and external threads (with exceptions ISO \/ UN \/ NPSM \/ UNJ \/ Acme).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTiAlN coating\u003c\/b\u003e: TiAlN coating provides enhanced wear resistance and higher heat tolerance for tougher materials and longer tool life.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThis Whitworth carbide threading insert is built to streamline production without sacrificing accuracy. The dual-edge design and broad profile coverage reduce tool changes and inventory needs, while the TiAlN coating helps maintain a clean, precise thread finish even on demanding materials. Ideal for machine shops, maintenance teams, and production environments that regularly encounter Whitworth threads and related standards.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316057452622,"sku":"21-16W","price":35.22,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_7fe2b697-800c-4eae-89da-0301d471dee7.jpg?v=1697553524"},{"product_id":"21-19w","title":"Carmex Carbide Threading Insert - Whitworth - TiAlN Coated - 21-19W","description":"\u003cdiv\u003e\n\u003cp\u003eThe Carmex Carbide Threading Insert for Whitworth threads is a TiAlN-coated carbide tool designed to deliver precise, reliable threading across a wide range of profiles. Built for professional shops that demand durability and efficiency, it simplifies setup and boosts productivity in everyday turning and threading tasks.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eThread profiles covered\u003c\/b\u003e: A versatile collection of inserts that span all common thread profiles, reducing the need for multiple tools.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLength options\u003c\/b\u003e: Five lengths available from 12 mm to 40 mm to fit different part sizes and threading depths.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePitch range\u003c\/b\u003e: Depending on length, supports pitches from 0.5 mm (32 TPI) to 6.0 mm (4 TPI).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDouble-sided cutting edges\u003c\/b\u003e: Each insert provides two cutting edges for extended life (except for BSPT\/NPT\/NPTF\/American Buttress\/API RD variants).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal\/External capability\u003c\/b\u003e: For many profiles, the same insert can machine both internal and external threads (with exceptions ISO\/UN\/NPSM\/UNJ\/Acme).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCoating\u003c\/b\u003e: TiAlN coating enhances hardness and wear resistance, helping maintain thread quality and extend tool life in demanding materials.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThis insert is designed to deliver consistent, accurate Whitworth threading across a variety of applications. The TiAlN coating reduces wear under high-speed conditions, while the double-edged design maximizes usage before reindexing. Its broad profile coverage and compatibility with both internal and external threading tasks make it a practical choice for production runs and precision work alike, helping you keep setups short and results repeatable.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316057485390,"sku":"21-19W","price":35.22,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_a58432ed-4cef-4f0c-83b5-a7cba9345064.jpg?v=1697553527"},{"product_id":"21-20w","title":"Carmex Carbide Threading Insert - Whitworth - TiAlN Coated - 21-20W","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Carmex Carbide Threading Insert in Whitworth form is a durable, TiAlN-coated solution for machinists who regularly cut Whitworth threads and other common profiles. Designed for versatility, it handles both internal and external threading tasks with dependable precision.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eModel\/Coating\u003c\/b\u003e: TiAlN-coated carbide insert from Carmex, built for strength and heat resistance in demanding threading operations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThread profiles\u003c\/b\u003e: Covers all common thread profiles, with reliable performance on Whitworth forms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLength options\u003c\/b\u003e: Available in 5 lengths from 12 mm to 40 mm to fit a wide range of setups and pitches.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePitch range\u003c\/b\u003e: Suitable for pitches from 0.5 mm (32 TPI) up to 6.0 mm (4 TPI), enabling both fine and coarse thread work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDouble-edged design\u003c\/b\u003e: Inserts are double-sided with two cutting edges (except for BSPT\/NPT\/NPTF\/American Buttress\/API RD), improving tool life per edge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal\/External capability\u003c\/b\u003e: For many thread profiles, the same insert can machine both internal and external threads (with noted exceptions for ISO\/UN\/NPSM\/UNJ\/Acme).\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis threading insert delivers practical, real-world benefits: extended tool life from a hard carbide with a resilient TiAlN coating, reduced downtime thanks to dual cutting edges, and the flexibility to tackle a broad spectrum of thread forms without swapping inserts. Its design focuses on reliability and consistency, helping you achieve accurate thread profiles across a range of materials and applications.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316057518158,"sku":"21-20W","price":35.22,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_e31b2d4a-261b-4fa4-ac6c-515745c2855f.jpg?v=1697553531"},{"product_id":"30-11w","title":"Carmex Carbide Threading Insert - Whitworth - TiAlN Coated - 30-11W","description":"\u003cdiv\u003e\n\u003cp\u003eThe Carmex Whitworth Carbide Threading Insert with TiAlN coating is a versatile carbide solution designed for machinists who regularly produce threaded components. It supports Whitworth and other common thread profiles, delivering consistent performance across both internal and external threads with a single, durable insert.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eTiAlN coating\u003c\/b\u003e: TiAlN-coated carbide for enhanced wear resistance and reduced friction at higher cutting speeds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThread profile versatility\u003c\/b\u003e: Covers Whitworth and other common thread forms, making it suitable for a wide range of turning and threading tasks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFive length options\u003c\/b\u003e: Five lengths spanning from 12 mm to 40 mm to accommodate different depths and pitches.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDouble-sided cutting edges\u003c\/b\u003e: Two cutting edges per insert (except for BSPT\/NPT\/NPTF\/American Buttress\/API RD profiles), increasing usable life per insert.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal \u0026amp; external threading\u003c\/b\u003e: For many profiles, the same insert can machine both internal and external threads (except ISO\/UN\/NPSM\/UNJ\/Acme).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePitch range compatibility\u003c\/b\u003e: Able to handle pitches from 0.5 mm (32 TPI) to 6.0 mm (4 TPI), depending on the chosen length.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThis insert is ideal for shops that prioritize efficiency and consistency in threaded components. By combining multiple common thread forms into a single, robust carbide insert, it reduces tool changes and stocking needs while delivering reliable thread quality. The TiAlN coating helps maintain tool life under demanding conditions, and the dual cutting edges extend usage between resharpening or replacements. Use cases range from general-purpose Whitworth threading on home or production machines to broader applications that require quick switching between internal and external threads without swapping inserts.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316057550926,"sku":"30-11W","price":48.3,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_abddacce-d56e-44c3-870a-b289505a9d15.jpg?v=1697553534"},{"product_id":"30-14w","title":"Carmex Carbide Threading Insert - Whitworth - TiAlN Coated - 30-14W","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Carmex Carbide Threading Insert - Whitworth - TiAlN Coated - 30-14W is a durable, versatile threading solution built for machinists who want reliable Whitworth and other common thread profiles in one ready-to-use insert.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial\u003c\/b\u003e: Solid carbide insert designed for high hardness, wear resistance, and long tool life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCoating\u003c\/b\u003e: TiAlN coating enhances heat resistance and reduces wear at higher cutting speeds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThread Profiles Covered\u003c\/b\u003e: A broad collection that supports Whitworth and all common thread profiles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAvailable Lengths\u003c\/b\u003e: Five lengths spanning from 12 mm to 40 mm to match different threading needs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePitch Range\u003c\/b\u003e: Depending on length, capable of handling pitches from 0.5 mm (32 TPI) to 6.0 mm (4 TPI).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDouble-Sided Cutting Edges\u003c\/b\u003e: Two cutting edges for most profiles, maximizing edge life (exception: BSPT\/NPT\/NPTF\/American Buttress\/API RD).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal\/External Machining\u003c\/b\u003e: In many thread forms, the same insert can machine both internal and external threads (exceptions: ISO\/UN\/NPSM\/UNJ\/Acme).\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis single, high-performance insert reduces tool changes and setup time while delivering consistent thread form and surface finish across a wide range of profiles. The carbide substrate handles challenging materials with confidence, and the TiAlN coating helps maintain sharpness through extended use. Ideal for workshop environments, job shops, and maintenance departments that require flexible, precise threading capabilities without juggling multiple inserts.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316057583694,"sku":"30-14W","price":48.3,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_e41c5950-d301-4969-9dd5-f538ae9a2a91.jpg?v=1697553537"},{"product_id":"30-16w","title":"Carmex Carbide Threading Insert - Whitworth - TiAlN Coated - 30-16W","description":"\u003cdiv\u003e\n\u003cp\u003e\nCarmex Carbide Threading Insert – Whitworth – TiAlN Coated – 30-16W is a versatile carbide threading solution designed for machinists who need reliable performance across Whitworth and common thread profiles. The TiAlN coating and dual-cutting-edge design deliver consistent results in a variety of threading tasks.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial \u0026amp; Coating\u003c\/b\u003e: Carbide insert with TiAlN coating for enhanced heat resistance and extended cutting life in demanding threading operations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLength Options\u003c\/b\u003e: 5 lengths available, ranging from 12 mm to 40 mm to match different thread forms and applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePitch Range\u003c\/b\u003e: Compatible with pitches from 0.5 mm (32 TPI) up to 6.0 mm (4 TPI), depending on the chosen length.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDouble‑Sided Design\u003c\/b\u003e: Each insert provides two cutting edges (except for BSPT\/NPT\/NPTF\/American Buttress\/API RD variants), maximizing usable life per piece.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal \u0026amp; External Machining\u003c\/b\u003e: For many thread profiles, the same insert can machine both internal and external threads, reducing tool inventory (note: not applicable to ISO\/UN\/NPSM\/UNJ\/Acme profiles).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eScope\u003c\/b\u003e: A comprehensive collection intended to cover all common thread profiles, offering a practical, all-in-one threading solution for diverse machining needs.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis insert set helps you reduce changeovers and stock a single, reliable tool for a wide range of Whitworth and standard thread tasks. The robust carbide body and TiAlN coating are crafted to sustain higher cutting speeds and provide cleaner thread forms, improving productivity in milling and lathe operations. Whether you’re building precise fasteners or repairing threaded components, this Carmex insert delivers consistent performance across multiple pitches and thread forms.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316057616462,"sku":"30-16W","price":48.3,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_aef8f85e-0c50-4248-8cb6-3d75974f9770.jpg?v=1697553541"},{"product_id":"40-11w","title":"Carmex Carbide Threading Insert - Whitworth - TiAlN Coated - 40-11W","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Carmex Carbide Threading Insert in Whitworth (40-11W) is a versatile, TiAlN-coated carbide insert designed for precision threading across a wide range of profiles. Built for professional machinists and job shops, it delivers reliable performance in both internal and external applications with minimal tool changes.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eCoating \u0026amp; material\u003c\/b\u003e: TiAlN-coated carbide for enhanced wear resistance and high-temperature stability during demanding threading operations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eProfile coverage\u003c\/b\u003e: A versatile set that supports all common thread profiles, with a focus on Whitworth threads for consistent results.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLength options\u003c\/b\u003e: Five available lengths (from 12 mm to 40 mm) to accommodate different tool setups and pitches.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePitch range\u003c\/b\u003e: Suitable for pitches from 0.5 mm (32 TPI) up to 6.0 mm (4 TPI), offering broad threading capability in a single insert family.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDouble-sided edges\u003c\/b\u003e: Inserts are designed with two cutting edges to maximize usable life, except for BSPT\/NPT\/NPTF\/American Buttress\/API RD configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal \u0026amp; external capability\u003c\/b\u003e: For many thread profiles, the same insert can machine both internal and external threads, reducing the need to carry multiple inserts (note: some profiles like ISO\/UN\/NPSM\/UNJ\/Acme have specific limitations).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eModel\u003c\/b\u003e: 40-11W, a compact code that fits into standard threading insert catalogs for easy selection and replacement.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis threading insert is tailor-made for shops that demand efficiency and consistency. Its TiAlN coating helps extend tool life on tough materials, while the broad pitch and profile support minimize downtime caused by switching inserts. Whether you’re finishing Whitworth fittings, adjusting internal threads in housings, or preparing external threads on shafts, this insert delivers dependable performance with fewer tool changes and stable, repeatable results across a range of jobs.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316058009678,"sku":"40-11W","price":83.54,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_e8f85e7a-6b77-4aad-b53d-b6effc1d576c.jpg?v=1697553544"},{"product_id":"40-8w","title":"Carmex Carbide Threading Insert - Whitworth - TiAlN Coated - 40-8W","description":"\u003cdiv\u003e\n\u003cp\u003eThe Carmex Carbide Threading Insert for Whitworth threads, TiAlN coated, model 40-8W is a precision tool designed for reliable, versatile threading in metalworking projects. Built for workshop use, it delivers consistent results across common Whitworth forms with durable coating and practical wear life.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eLength options\u003c\/b\u003e: Five lengths spanning 12 mm to 40 mm to fit a range of hole depths and workpiece geometries.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial\u003c\/b\u003e: Carbide insert for rigidity and stable cutting performance in demanding applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCoating\u003c\/b\u003e: TiAlN coating enhances wear resistance and enables higher cutting speeds and longer tool life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThread form\u003c\/b\u003e: Whitworth threading insert crafted to support Whitworth profiles with reliable geometry.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCutting edges\u003c\/b\u003e: Double-sided design with two cutting edges (except for BSPT\/NPT\/NPTF\/American Buttress\/API RD variants) for extended usage before indexing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal\/External capability\u003c\/b\u003e: In many profiles, the same insert can machine both internal and external threads, reducing the need for multiple tools (with exceptions for ISO\/UN\/NPSM\/UNJ\/Acme).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePitches supported\u003c\/b\u003e: Depending on length, can handle pitches from 0.5 mm (32 TPI) to 6.0 mm (4 TPI).\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThis insert is designed to deliver precise Whitworth thread results with durable wear life, thanks to its carbide substrate and TiAlN coating. The double-edged design helps minimize tool changes during a run, while the flexible length options and broad pitch range offer practical versatility for a variety of threading tasks in metalworking shops.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316058042446,"sku":"40-8W","price":83.54,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_75e24cd3-1489-49da-a51b-c8d7e574464e.jpg?v=1697553548"}],"url":"https:\/\/www.protool-ltd.co.uk\/collections\/sr-indexable-thread-mill-inserts-whitworth.oembed","provider":"Protool Precision Tools","version":"1.0","type":"link"}