{"product_id":"sandvik-coromant-5781913-threading-insert-8-tpi-un-carbide","title":"Sandvik Coromant 5781913 Threading Insert 8 Tpi Un Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SANDVIK COROMANT 5781913 is a solid carbide laydown threading insert from the CoroThread 266 series, designed for external UN thread cutting at 8 threads per inch (TPI). It features a TiCrAlN\/TiN PVD coating that provides wear resistance and thermal stability during threading operations. The insert has a 3\/8 inch (9.53 mm) inscribed circle and measures 5\/32 inch (3.97 mm) thick. With a 60-degree included angle and a single tooth per side, this right-hand insert is suited for precision external thread profiling on CNC lathes and turning centers. It is intended for use by machinists and toolroom professionals working with UN-standard threaded components.\u003c\/p\u003e\u003cp\u003eThis insert is used in external threading operations requiring UN thread form at 8 TPI. It fits into CoroThread 266 series toolholders designed for laydown-style inserts. Typical applications include threading on ferrous and non-ferrous workpieces in production and job shop environments. The A chipbreaker geometry supports controlled chip evacuation during threading passes. This insert is appropriate for both moderate and finish threading cuts on turning equipment where consistent thread form and surface finish are required.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide substrate with PVD-applied TiCrAlN\/TiN coating for extended tool life\u003c\/li\u003e\n\u003cli\u003e8 TPI UN external thread form with 60-degree included angle\u003c\/li\u003e\n\u003cli\u003eRight-hand cutting orientation for standard external threading applications\u003c\/li\u003e\n\u003cli\u003eA chipbreaker for controlled chip management during threading passes\u003c\/li\u003e\n\u003cli\u003eCoroThread 266 series insert style compatible with 266-series toolholders\u003c\/li\u003e\n\u003cli\u003e3\/8 inch inscribed circle with 0.1732 inch hole diameter for secure clamping\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with SANDVIK COROMANT CoroThread 266 series toolholders that accept size 16 laydown threading inserts with a 3\/8 inch inscribed circle and 0.1732 inch hole diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThreading inserts should be installed by qualified machinists following the toolholder manufacturer's clamping torque specifications. Power down and lock out the machine spindle before changing inserts. Inspect the toolholder pocket and clamping screw for wear or debris before seating the insert. Handle carbide inserts carefully to avoid chipping the cutting edge prior to use.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\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\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: 1135\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: CoroThread 266\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: 8\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\u003eChipbreaker\u003c\/strong\u003e: A\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: 5\/32 inch (3.97 mm \/ 0.1563 inch decimal)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.1732 inch (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\u003eCoating\/Finish\u003c\/strong\u003e: TiCrAlN\/TiN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: PVD\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\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 5781913\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51727945040178,"sku":"5781913","price":616.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5929439e42fa52d950984d662a610ba4_9da0fb59-f3d7-4b1d-a548-d60312647463.jpg?v=1788684851","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-5781913-threading-insert-8-tpi-un-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}