{"title":"SR Indexable Thread Mill Inserts - NPS","description":"","products":[{"product_id":"12-18nps","title":"Carmex Carbide Threading Insert - NPS - TiAlN Coated - 12-18NPS","description":"\u003cdiv\u003e\n\u003cp\u003e\nMeet the Carmex Carbide Threading Inserts for NPS—TiAlN-coated carbide tooling built to cover the most common thread profiles with reliability and ease. Ideal for professional machinists and job shops, this versatile set helps you complete threading tasks with fewer tool changes and consistent results.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eTiAlN coating\u003c\/b\u003e: TiAlN coating enhances wear resistance and heat tolerance, helping inserts stay sharp longer during high-speed threading.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eComprehensive thread profiles coverage\u003c\/b\u003e: A versatile collection designed to handle all common thread profiles, reducing the need to switch between different inserts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFive length options\u003c\/b\u003e: Five lengths available (from 12 mm to 40 mm) to fit a range of threading depths and applications.\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 profiles), maximizing usage and extending life between changes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal and external threading capability\u003c\/b\u003e: For many thread profiles, the same insert can machine both internal and external threads, streamlining setup and inventory (note: ISO\/UN\/NPSM\/UNJ\/Acme profiles may require alternate geometries).\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis Carmex threading insert set is an efficient, durable choice for workshops that handle a mix of metric and imperial threads. With broad profile compatibility, multiple length options, and a robust carbide substrate, it supports precise thread formation, smooth finishes, and longer tooling life—even on demanding materials and higher-speed operations.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316033663054,"sku":"12-18NPS","price":26.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_12d44e0c-fca0-4ee7-8551-c045fd9e2030.jpg?v=1697552952"},{"product_id":"14-14nps","title":"Carmex Carbide Threading Insert - NPS - TiAlN Coated - 14-14NPS","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Carmex Carbide Threading Insert – NPS, TiAlN Coated, 14-14NPS is a versatile, high-precision cutting insert designed to cover the most common thread profiles with reliability and efficiency.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eFive length options\u003c\/b\u003e: available in a 12 mm to 40 mm range to suit a wide variety of pitches and tool setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTiAlN coating\u003c\/b\u003e: TiAlN coating provides enhanced wear and heat resistance, helping maintain edge life during challenging threading operations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCarbide body\u003c\/b\u003e: solid carbide construction delivers stiffness and consistent cutting performance for accurate thread formation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDouble-sided cutting edges\u003c\/b\u003e: each insert carries two cutting edges for extended life and lower tooling costs (note: BSPT\/NPT\/NPTF\/American Buttress\/API RD profiles may differ).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal \u0026amp; external capabilities\u003c\/b\u003e: for many thread profiles, the same insert can machine both internal and external threads, reducing tool changes (excludes ISO\/UN\/NPSM\/UNJ\/Acme).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eComprehensive thread coverage\u003c\/b\u003e: designed to address a broad range of common thread profiles in a single insert family.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis insert is ideal for machine shops and production environments that service piping, hydraulics, and mechanical assemblies requiring reliable National Pipe Straight Thread (NPS) and related profiles. The dual edges and TiAlN coating deliver longevity and robust performance across a variety of materials and threading tasks, while the five-length options let you optimize for precision pitches from fine (0.5 mm \/ 32 TPI) up to coarse (6.0 mm \/ 4 TPI). Whether you're finishing a critical fit or upfront threading work, this Carmex insert helps you complete more jobs with fewer tool changes and greater consistency.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316033695822,"sku":"14-14NPS","price":26.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_f6f56a80-2b40-4598-8ca9-7ca1e7e0629c.jpg?v=1697552956"},{"product_id":"14-18nps","title":"Carmex Carbide Threading Insert - NPS - TiAlN Coated - 14-18NPS","description":"\u003cdiv\u003e\n\u003cp\u003eThe Carmex Carbide Threading Insert – NPS, TiAlN coated, 14-18 NPS – is a versatile tool designed for machinists who need reliable threading across a wide range of profiles. Built for shops that value longevity and consistent results, this insert handles many common thread forms with a single, robust solution.\u003c\/p\u003e \u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/carmex.png?v=1657641889\" alt=\"Carmex Carbide Threading Insert\"\u003e\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eFive length options\u003c\/b\u003e: Available in five lengths (12 mm to 40 mm) to match tool reach and bore depth for diverse threading tasks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWide pitch compatibility\u003c\/b\u003e: Depending on length, supports pitches from 0.5 mm (32 TPI) to 6.0 mm (4 TPI) for broad threading coverage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDouble‑sided cutting edges\u003c\/b\u003e: Each insert has two cutting edges to extend tool life (note: BSPT, NPT, NPTF, American Buttress, and API RD are exceptions).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal \u0026amp; external threading\u003c\/b\u003e: For many thread profiles, the same insert can machine both internal and external threads, reducing tool changes (exceptions: ISO, UN, NPSM, UNJ, Acme).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTiAlN coating on carbide\u003c\/b\u003e: TiAlN coating enhances wear resistance and heat tolerance, helping maintain precision and extend insert life in demanding materials.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhether you’re running quick prototype jobs or steady production, this Carmex threading insert delivers consistent thread quality with fewer tool changes. The combination of multiple lengths, dual cutting edges, and a durable TiAlN coating translates to longer tool life, reliable performance, and streamlined tooling for a wide range of thread profiles.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316033728590,"sku":"14-18NPS","price":26.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_525dc8b2-a663-485e-a4d2-2e8accccb9b4.jpg?v=1697552959"},{"product_id":"21-11-5nps","title":"Carmex Carbide Threading Insert - NPS - TiAlN Coated - 21-11.5NPS","description":"\u003cdiv\u003e\n\u003cp\u003e\nIntroducing the Carmex Carbide Threading Insert - NPS - TiAlN Coated - 21-11.5NPS. This durable carbide insert is designed for machinists who routinely work with common thread profiles, delivering dependable performance across a range of applications.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eDouble‑edged cutting edges\u003c\/b\u003e: Each insert provides two ready-to-use edges (except for BSPT\/NPT\/NPTF\/American Buttress\/API RD variants), delivering extended life before reindexing is required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBroad thread profile coverage\u003c\/b\u003e: A versatile collection that accommodates all the common thread profiles you’re likely to encounter in everyday machining.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFive length options\u003c\/b\u003e: Available in 12 mm to 40 mm lengths, giving you flexibility to match your tooling setup and depth of cut needs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePitch range (depends on length)\u003c\/b\u003e: Compatible with pitches from 0.5 mm \/ 32 TPI up to 6.0 mm \/ 4 TPI, depending on the inserted length for optimal performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTiAlN coating\u003c\/b\u003e: The TiAlN layer enhances wear resistance and contributes to longer insert life in demanding materials and high-speed threading jobs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCarbide construction\u003c\/b\u003e: Precision-ground carbide construction delivers consistent cutting action and repeatable thread forms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal \u0026amp; external threading versatility\u003c\/b\u003e: For many thread profiles, the same insert can machine both internal and external threads, reducing tool changes (note: ISO \/ UN \/ NPSM \/ UNJ \/ Acme profiles may require specific considerations).\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis carbide threading insert is built to support efficient, accurate threading across a broad spectrum of projects, from hydraulic fittings to general pipe-threading tasks. The combination of multiple lengths, dual cutting edges, and TiAlN coating helps you reduce downtime, improve tool life, and achieve reliable thread quality with less tuning between jobs.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316034252878,"sku":"21-11.5NPS","price":35.22,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_1f622fb5-6be2-4196-a63f-b0d751ab8053.jpg?v=1697552963"},{"product_id":"21-14nps","title":"Carmex Carbide Threading Insert - NPS - TiAlN Coated - 21-14NPS","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Carmex Carbide Threading Insert for NPS (TiAlN coated, model 21-14NPS) is a versatile cutting solution designed for professional machinists who tackle a wide range of threading tasks. Built to cover all common thread profiles, it delivers reliable performance across internal and external applications.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eCoating\u003c\/b\u003e: TiAlN-coated carbide for improved heat resistance and extended edge life in demanding threading operations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCoverage\u003c\/b\u003e: A single insert family that supports all common thread profiles, reducing the need to switch between multiple inserts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEdge Count\u003c\/b\u003e: Double-sided cutting edges provide two usable edges per insert (except for BSPT\/NPT\/NPTF\/American Buttress\/API RD profiles), maximizing tool life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLength Options\u003c\/b\u003e: Five lengths ranging from 12 mm to 40 mm to suit different component sizes and machine setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePitch Range\u003c\/b\u003e: Depending on length, handles pitches from 0.5 mm (32 TPI) to 6.0 mm (4 TPI), covering a broad spectrum of industrial threading needs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal\/External Capability\u003c\/b\u003e: For many thread profiles, the same insert machines both internal and external threads (note: some profiles are exceptions).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial\u003c\/b\u003e: Robust carbide construction designed for precision threading and long-term wear resistance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eApplication Scope\u003c\/b\u003e: Ideal for automotive, hydraulic, plumbing, and general manufacturing tasks requiring accurate, repeatable threads.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis threading insert is crafted to streamline production workflows: fewer tool changes, consistent thread quality, and the flexibility to tackle a variety of profiles with confidence. The TiAlN coating helps maintain sharpness under higher-speed operations, while the double-edged design reduces downtime by offering multiple usable edges from a single insert. Whether you’re finishing a 0.5 mm pitch on a compact component or cutting a 6.0 mm pitch on a larger part, this Carmex insert is a dependable choice for precise, repeatable results.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316034285646,"sku":"21-14NPS","price":35.22,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_edd805ce-1c88-4a3b-b1df-b28613129a5d.jpg?v=1697552967"},{"product_id":"30-11-5nps","title":"Carmex Carbide Threading Insert - NPS - TiAlN Coated - 30-11.5NPS","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Carmex Carbide Threading Insert – NPS, TiAlN Coated is a versatile, high-performance solution built for professional machinists who produce a wide range of thread profiles. With multiple length options and broad pitch compatibility, it delivers reliable threading results across common applications.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eFive length options\u003c\/b\u003e: available in 12 mm to 40 mm lengths to match different thread depths and profiles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTiAlN coating\u003c\/b\u003e: provides enhanced wear resistance and heat tolerance for longer insert life and steadier performance in demanding threading operations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDouble-sided design\u003c\/b\u003e: two cutting edges per insert (except for BSPT\/NPT\/NPTF\/American Buttress\/API RD), increasing usable life and reducing tool changes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal \u0026amp; external threading versatility\u003c\/b\u003e: in many thread profiles, the same insert can machine both internal and external threads, streamlining your setup (exceptions: ISO\/UN\/NPSM\/UNJ\/Acme).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBroad pitch range\u003c\/b\u003e: handles pitches from 0.5 mm (32 TPI) up to 6.0 mm (4 TPI), covering the majority of common threading tasks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eComprehensive profile coverage\u003c\/b\u003e: designed to tackle all common thread profiles with a single, adaptable insert platform.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis carbide threading insert is ideal for job shops, maintenance departments, and machining centers that prioritize versatility, durability, and consistent thread quality. Its dual-edged design and TiAlN coating reduce downtime and wear, while the five-length range and wide pitch compatibility provide flexibility across many projects—without needing a multitude of different inserts. Whether you’re tightening a pipe thread set or finishing a precision mechanical thread, this insert is built to perform reliably.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316034318414,"sku":"30-11.5NPS","price":48.3,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_b2849f1b-b937-4dab-8a0f-774906362adb.jpg?v=1697552970"},{"product_id":"30-8nps","title":"Carmex Carbide Threading Insert - NPS - TiAlN Coated - 30-8NPS","description":"\u003cdiv\u003e\n\u003cp\u003e\nMeet Carmex Carbide Threading Inserts—your versatile solution for precision threading across common profiles. Perfect for machine shops and CNC operators who need reliable, durable inserts that cover a wide range of thread types without constant tool changes.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eCoating\u003c\/b\u003e: TiAlN-coated carbide inserts deliver enhanced wear resistance and heat tolerance for consistent performance at higher speeds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCutting Edges\u003c\/b\u003e: Double-sided design provides two cutting edges per insert, extending usable life (except for BSPT\/NPT\/NPTF\/American Buttress\/API RD profiles).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThread Profiles Covered\u003c\/b\u003e: A comprehensive collection that supports all common thread forms, reducing the need to stock multiple separate tools.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOperating Lengths\u003c\/b\u003e: Available in 5 lengths from 12 mm to 40 mm to match your machining setup and reach 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), depending on the chosen length.\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\u003eCompatibility\u003c\/b\u003e: Optimized for NPS-threaded workpieces, aligning with common piping and mechanical assembly applications.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThese inserts are designed to deliver dependable thread quality across a broad range of jobs—from standard fasteners to pipe fittings. The combination of TiAlN coating, multi-edge geometry, and length\/pitch options helps you reduce tool changes, simplify inventory, and maintain consistent results on both interior and exterior threads. Ideal for general machining, maintenance workshops, and production environments where versatility and reliability matter most.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316034383950,"sku":"30-8NPS","price":48.3,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_f737311f-d7d1-46e3-8a43-2ff894b75b26.jpg?v=1697552973"},{"product_id":"40-11-5nps","title":"Carmex Carbide Threading Insert - NPS - TiAlN Coated - 40-11.5NPS","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Carmex Carbide Threading Insert for NPS threads is a versatile, TiAlN-coated solution built for machinists who need reliable, multi-profile threading in a single insert. Designed to handle a range of common thread forms, it delivers consistent results across everyday production work.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eCoating\u003c\/b\u003e: TiAlN coating provides enhanced hardness and wear resistance for longer tool life and better heat tolerance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThread profiles\u003c\/b\u003e: A comprehensive collection that covers all common thread profiles in a single insert.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLengths\u003c\/b\u003e: Available in 5 lengths, from 12 mm to 40 mm, to suit different tooling setups and applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCutting edges\u003c\/b\u003e: Double-sided design with two cutting edges per insert, increasing cutting life (note: BSPT \/ NPT \/ NPTF \/ American Buttress \/ API RD are exceptions).\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\u003ePitch range\u003c\/b\u003e: Depending on length, supports pitches from 0.5 mm (32 TPI) to 6.0 mm (4 TPI), enabling a broad range of threading tasks.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis insert is ideal for production environments, job shops, and maintenance teams that require flexible threading capabilities without maintaining a large assortment of inserts. The TiAlN coating helps resist wear on challenging materials, while the double-edged geometry reduces downtime by extending usable life between indexings. Use it for standard NPS threads in pipes, fittings, fasteners, and mechanical assemblies where reliable, consistent threading is essential.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316034449486,"sku":"40-11.5NPS","price":83.54,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_a91240da-3c4c-48e5-9b4b-513342b750ba.jpg?v=1697552977"}],"url":"https:\/\/www.protool-ltd.co.uk\/collections\/sr-indexable-thread-mill-inserts-nps.oembed","provider":"Protool Precision Tools","version":"1.0","type":"link"}