{"product_id":"sandvik-coromant-5781926-threading-insert-12-tpi-3-8-inch-ic","title":"Sandvik Coromant 5781926 Threading Insert 12 Tpi 3\/8 Inch Ic","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SANDVIK COROMANT 5781926 is a laydown threading insert designed for external UN thread cutting operations on CNC lathes and turning centers. Part of the CoroThread 266 series, it is made from solid carbide with a PVD-applied TiCrAlN\/TiAlN dual-layer coating that extends tool life in both steel and stainless steel applications. The insert cuts right-hand external threads at 12 threads per inch with a 60-degree included angle. It measures 3\/8 inches inscribed circle and 5\/32 inches thick. Machinists and CNC operators install this insert on compatible CoroThread 266 toolholders for precision threading work in production environments.\u003c\/p\u003e\u003cp\u003eThis insert is suited for external UN threading in medium to high-volume turning applications. The C chipbreaker geometry supports controlled chip evacuation during threading passes. At 12 TPI, it covers common fastener and fitting thread pitches used in industrial, hydraulic, and mechanical assemblies. The single-tooth cutting edge profile delivers consistent thread form across repeated passes. It is typically used in job shop and production machining environments where UN-standard thread accuracy is required.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide substrate provides rigidity and wear resistance for threading interrupted and continuous cuts\u003c\/li\u003e\n\u003cli\u003ePVD TiCrAlN\/TiAlN coating improves surface hardness and heat resistance at the cutting edge\u003c\/li\u003e\n\u003cli\u003eRight-hand external UN thread geometry at 12 TPI with 60-degree included angle\u003c\/li\u003e\n\u003cli\u003eC chipbreaker design promotes chip control during threading cycles\u003c\/li\u003e\n\u003cli\u003e3\/8 inch (9.53 mm) inscribed circle with 0.1732 inch hole diameter for secure toolholder mounting\u003c\/li\u003e\n\u003cli\u003eCoroThread 266 series insert style 266 for use with matching 266-series toolholders\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with SANDVIK COROMANT CoroThread 266 series toolholding systems accepting insert size code 16 with a 0.1732 inch (4.40 mm) hole diameter. Consult the CoroThread 266 toolholder selection guide to confirm holder compatibility before installation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified CNC machinist or toolroom technician. Power down and lock out the machine spindle before seating or changing inserts. Use the appropriate torx or insert clamping screw torque tool per the toolholder manufacturer specification. Inspect the insert pocket and clamping screw for wear or damage before installing a new insert to ensure proper seating and thread form accuracy.\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\u003eSeries\u003c\/strong\u003e: CoroThread 266\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\/Finish\u003c\/strong\u003e: TiCrAlN \/ 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: UN\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: 12\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: C\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: 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\u003eInsert Size Code\u003c\/strong\u003e: 16\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.13 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: 5781926\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51752145781042,"sku":"5781926","price":616.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/cd94e254890a5252541427527eff509e_053c5758-00aa-438b-a3c4-249b2e54e93c.jpg?v=1788926174","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-5781926-threading-insert-12-tpi-3-8-inch-ic","provider":"Voomi Supply","version":"1.0","type":"link"}