{"product_id":"sandvik-coromant-5757979-laydown-threading-insert-bspt-11-tpi","title":"Sandvik Coromant 5757979 Laydown Threading Insert Bspt 11 Tpi","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SANDVIK COROMANT 5757979 is a solid carbide laydown threading insert designed for right-hand external BSPT thread cutting at 11 threads per inch. Part of the CoroThread 266 series, it carries a dual-layer PVD coating of TiCrAlN and TiAlN applied over the carbide substrate to extend edge life under demanding cutting conditions. The insert measures 3\/8 inches inscribed circle and 5\/32 inches thick, fitting standard 266-series threading toolholders. Grade 1125 provides a balanced combination of wear resistance and toughness suited to a wide range of workpiece materials. Licensed machinists and CNC operators install this insert in production threading and repair applications.\u003c\/p\u003e\n\u003cp\u003eThis insert is used in turning centers and CNC lathes where BSPT pipe thread profiles must be generated on external diameters. The 60-degree included angle and single tooth per side geometry produce a full-form British Standard Pipe Taper thread. It is appropriate for both production runs and low-volume threading work where consistent thread form and surface finish are required. The CoroThread 266 platform is a common choice in precision machining shops, pipe fitting manufacturers, and maintenance facilities that require traceable, repeatable thread geometry.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide substrate with PVD TiCrAlN and TiAlN dual-layer coating for extended tool life\u003c\/li\u003e\n  \u003cli\u003eRight-hand external BSPT thread profile at 11 TPI with a 60-degree included angle\u003c\/li\u003e\n  \u003cli\u003e3\/8 inches (9.53 mm) inscribed circle for stable clamping in CoroThread 266 toolholders\u003c\/li\u003e\n  \u003cli\u003e5\/32 inches (3.97 mm) thickness with a 0.1732 inch hole diameter for secure insert seating\u003c\/li\u003e\n  \u003cli\u003eGrade 1125 carbide offers wear resistance suited to steel and stainless threading operations\u003c\/li\u003e\n  \u003cli\u003eInsert Style 266 with Chipbreaker A geometry for controlled chip evacuation during threading passes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in SANDVIK COROMANT CoroThread 266 series threading toolholders that accept size 16 laydown inserts. The manufacturers catalog number for this insert is 266RG-16PT01A110E 1125.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist or CNC programmer with the machine spindle fully stopped and all energy sources locked out before insert exchange. Use a torque wrench calibrated to the toolholder manufacturer specification for the clamping screw to avoid seat distortion. Inspect the insert pocket and clamping components for debris or wear before seating the new insert. Verify thread form with a go\/no-go gauge or optical comparator after the first threading pass.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Series\u003c\/strong\u003e: CoroThread 266\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: 266\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Size Code\u003c\/strong\u003e: 16\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: 1125\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: TiCrAlN and TiAlN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: PVD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: BSPT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: External\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreads Per Inch\u003c\/strong\u003e: 11\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 60 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChipbreaker\u003c\/strong\u003e: A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Teeth Per Side\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 3\/8 inches (9.53 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 5\/32 inches (3.97 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.1732 inches (4.40 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.11 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23291804\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SANDVIK COROMANT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 5757979\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51738239598898,"sku":"5757979","price":677.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/cd94e254890a5252541427527eff509e_bddd70cf-a235-4672-a1b9-94c4f836a80a.jpg?v=1788797140","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-5757979-laydown-threading-insert-bspt-11-tpi","provider":"Voomi Supply","version":"1.0","type":"link"}