{"product_id":"sandvik-coromant-5781916-threading-insert-11-tpi-solid-carbide","title":"Sandvik Coromant 5781916 Threading Insert 11 Tpi Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SANDVIK COROMANT 5781916 is a solid carbide laydown threading insert designed for external UN thread cutting on CNC lathes and turning centers. Part of the CoroThread 266 series, this insert features a PVD-applied dual-layer TiAlN and TiCrAlN coating for elevated wear resistance and edge retention at high cutting temperatures. It carries a 60-degree included angle, cuts right-hand threads at 11 threads per inch (TPI), and is sized with a 3\/8-inch inscribed circle (IC) and a thickness of 0.1563 inches. Licensed machinists and CNC operators install this insert in compatible CoroThread 266 toolholders for precision external threading operations.\u003c\/p\u003e\n\u003cp\u003eThis insert is suited for external UN threading applications in production and job-shop environments on materials where PVD-coated carbide performs reliably. The CoroThread 266 insert style with chipbreaker designation A is applied in single-point threading passes on lathes and turn-mill centers. With a single tooth per side and right-hand orientation, it is configured for standard right-hand external UN thread forms on workpieces requiring precise thread geometry and consistent pitch control at 11 TPI.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide substrate with PVD-applied TiAlN and TiCrAlN dual-layer coating for extended tool life\u003c\/li\u003e\n  \u003cli\u003eRight-hand external UN thread form at 11 TPI with 60-degree included angle\u003c\/li\u003e\n  \u003cli\u003e3\/8-inch inscribed circle (9.53 mm) and 0.1563-inch thickness (3.97 mm) for precise toolholder seating\u003c\/li\u003e\n  \u003cli\u003eChipbreaker style A for controlled chip formation during threading passes\u003c\/li\u003e\n  \u003cli\u003eCoroThread 266 series geometry engineered for single-point external threading on turning equipment\u003c\/li\u003e\n  \u003cli\u003eManufacturer grade 1125 matched to the PVD coating process for thermal stability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement insert for SANDVIK COROMANT CoroThread 266 series toolholders accepting insert size code 16 laydown threading inserts with a 0.1732-inch hole diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist or CNC tooling technician. Power down and lock out the machine spindle before indexing or replacing inserts. Seat the insert fully and evenly in the toolholder pocket and verify clamp torque per the toolholder manufacturer specifications before resuming cuts. Inspect the insert pocket and clamping screw for wear or contamination before each insert change.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\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\u003eThread Standard\u003c\/strong\u003e: UN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: External\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreads Per Inch\u003c\/strong\u003e: 11 TPI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 60 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 3\/8 inch (9.53 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.1563 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\u003eNumber of Teeth Per Side\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChipbreaker\u003c\/strong\u003e: A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: 1125\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: PVD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating Finish\u003c\/strong\u003e: TiAlN and TiCrAlN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: CoroThread 266\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.12 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: 5781916\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51737239847218,"sku":"5781916","price":569.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/cd94e254890a5252541427527eff509e_5698dd5e-866d-4ecd-ba82-3050fc955e51.jpg?v=1788785952","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-5781916-threading-insert-11-tpi-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}