{"title":"Long Shank Holders - SR Range","description":"","products":[{"product_id":"sr0025k21","title":"Carmex Single Long Shank Threading Insert holder - For Carbide External\/Internal Threading Inserts - SR0025K21","description":"\u003cdiv\u003e\n\u003cp\u003e\nCarmex SR0025K21 is a dedicated long shank threading insert holder designed for carbide external and internal threading inserts. Built for CNC milling environments, it unlocks extended reach on long overhang threading tasks without sacrificing accuracy or reliability.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eLong overhang design\u003c\/b\u003e: A purpose-built tool holder line for applications requiring extended reach in threading projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal coolant bore\u003c\/b\u003e: Integrated coolant channel helps flush chips, improve insert life, and maintain steady cutting performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMaximum length\u003c\/b\u003e: Supports substantial reach with an overall holder length up to 210 mm (6 inches) for versatile setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCarbide insert compatibility\u003c\/b\u003e: Optimized to hold carbide external and internal threading inserts for multi-tooth, high-efficiency cutting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCost-efficient solution\u003c\/b\u003e: More economical than taps and dies for long-threading tasks, while delivering reusable inserts and repeatable results.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMachining method\u003c\/b\u003e: Designed to work with CNC milling machines using helical interpolation programs to achieve precise thread milling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eModel\u003c\/b\u003e: SR0025K21\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis holder is crafted to boost productivity in thread milling jobs by enabling higher cutting speeds with multi-tooth carbide inserts, while maintaining consistent thread quality. It’s especially valuable for shops tackling long, deep, or hard-to-reach threads where traditional tapping isn’t practical. When working with long overhangs, lightly reduce cutting speed and feed rate by 20–40%—the exact adjustment depends on workpiece material, thread pitch, and the degree of overhang—to preserve tool life and finish. Use the Carmex long shank threading insert holder to streamline setups, extend tool life, and achieve reliable, precise threads on CNC mills.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40318194679886,"sku":"SR0025K21","price":140.66,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-long-shank_27cc4048-7fbf-4004-bf04-f6a11842d5a7.jpg?v=1697624501"},{"product_id":"sr0031m30","title":"Carmex Single Long Shank Threading Insert holder - For Carbide External\/Internal Threading Inserts - SR0031M30","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Carmex Single Long Shank Threading Insert Holder is a precision, long-reach tool designed for CNC milling machines to perform external and internal threading with efficiency and accuracy. It’s ideal for shops needing extended reach in tight or deep cavities while maintaining reliable threading results with carbide inserts.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eLong overhang design\u003c\/b\u003e: Engineered to provide extended reach for challenging threading jobs without compromising rigidity or accuracy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal coolant bore\u003c\/b\u003e: Integrated coolant channel helps keep inserts cool, improving insert life and chip evacuation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLength options\u003c\/b\u003e: Overall holder length up to 210 mm (metric versions) \/ 6 inches (inch versions) for flexible setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIndexable carbide inserts compatibility\u003c\/b\u003e: Works with carbide external and internal threading inserts, leveraging multi-tooth geometry for higher cutting speeds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eModel\u003c\/b\u003e: SR0031M30\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eApplication and process\u003c\/b\u003e: Optimized for threading on CNC mills using helical interpolation programs, enabling efficient thread milling over traditional tapping.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMachining notes\u003c\/b\u003e: When machining long overhangs, reduce cutting speed and feed rate by 20–40% depending on workpiece material, thread pitch, and amount of overhang.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis holder delivers tangible productivity gains by enabling rapid, accurate thread milling with a cost-effective tooling path. The combination of a long reach, coolant-assisted operation, and compatibility with carbide inserts helps reduce tooling costs while expanding the range of parts you can thread in a single setup. It’s a dependable choice for shops tackling deep threads, long shafts, or recessed features where a standard-length holder would struggle.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40318194876494,"sku":"SR0031M30","price":159.62,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-long-shank_69982675-c051-4008-b259-329284d30fda.jpg?v=1697624504"},{"product_id":"sr0038m30","title":"Carmex Single Long Shank Threading Insert holder - For Carbide External\/Internal Threading Inserts - SR0038M30","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Carmex Single Long Shank Threading Insert Holder is a precision tool designed for CNC milling threading tasks. It supports carbide external and internal threading inserts and is ideal for engineers, buyers, tradespeople, hobbyists, and non-technical customers who need reliable, repeatable threads on modern milling centers.\n\u003c\/p\u003e \u003cp\u003e\nBuilt for long overhang applications, this holder helps you reach deep thread features with a robust, rigid design. It features an internal coolant bore and comes in metric versions up to 210 mm (and inch versions up to 6 inches). When machining long overhang jobs, reduce cutting speed and feed rate by 20–40% (the exact value depends on workpiece material, thread pitch, and amount of overhang).\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eLong overhang design for deep threading\u003c\/b\u003e: Enables access to extended thread features with maintained rigidity, improving consistency on challenging geometries.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal coolant bore for direct cooling\u003c\/b\u003e: Delivers coolant straight to the cutting edge, enhancing chip control and tool life during sustained threading passes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCarbide insert compatibility for faster, cost‑effective threading\u003c\/b\u003e: Works with multi-tooth carbide inserts to boost productivity and reduce tooling costs compared with traditional taps and dies.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis holder helps you complete threaded features more efficiently, reach hard-to-access areas without frequent tool changes, and maintain consistent thread quality across runs. By enabling direct coolant delivery and compatible carbide inserts, it supports higher cutting speeds where appropriate while helping to manage heat and wear. The result is a streamlined workflow, lower operational costs, and reliable performance across a wide range of CNC threading tasks.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40318195073102,"sku":"SR0038M30","price":166.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-long-shank_e6cecbc0-c337-4fad-810c-0006a22e4272.jpg?v=1697624508"},{"product_id":"sr0048r40","title":"Carmex Single Long Shank Threading Insert holder - For Carbide External\/Internal Threading Inserts - SR0048R40","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Carmex Single Long Shank Threading Insert Holder is a precision tool designed for CNC milling operators, engineers, and shops that need dependable threading on deep or hard-to-reach features. It accepts carbide external and internal threading inserts, providing a stable, rigid support that helps you achieve accurate thread profiles in a single setup. The long shank is ideal for long overhangs, giving you productive reach without sacrificing rigidity.\n\u003c\/p\u003e \u003cp\u003e\nThis holder is built to maximize productivity in threading operations. It features an internal coolant bore that delivers coolant directly to the cutting edge, reducing heat, extending insert life, and improving thread quality. With a reach of up to 210 mm in metric versions (or 6 inches in inch versions), it enables efficient machining of long threads on complex parts while keeping cycle times favorable.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eExtended reach for long overhangs\u003c\/b\u003e: Long shank design supports deep, demanding thread applications with up to 210 mm (metric) or 6 in (inch) overall length while maintaining stability and accuracy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal coolant bore for improved cooling\u003c\/b\u003e: Direct coolant delivery to the cutting edge reduces heat, enhances tool life, and promotes cleaner, more precise threads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCost-effective threading with carbide inserts\u003c\/b\u003e: Optimized for multi-tooth carbide inserts, enabling higher cutting speeds and lower tooling costs compared with traditional taps and dies.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nWhen machining long overhangs, reduce cutting speed and feed rate by 20–40% (exact value depends on workpiece material, thread pitch, and amount of overhang). This approach helps protect the tool, maintain thread quality, and minimize wear, ensuring reliable performance across an array of threading tasks.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40318195269710,"sku":"SR0048R40","price":244.3,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-long-shank_da3f8109-0fc3-41cc-9b46-dad137ab9ae4.jpg?v=1697624512"}],"url":"https:\/\/www.protool-ltd.co.uk\/collections\/long-shank-holders-sr-range.oembed","provider":"Protool Precision Tools","version":"1.0","type":"link"}