{"product_id":"sandvik-coromant-5781994-threading-insert-8-tpi-npt","title":"Sandvik Coromant 5781994 Threading Insert 8 Tpi Npt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SANDVIK COROMANT 5781994 is a laydown threading insert from the CoroThread 266 series, designed for cutting internal NPT threads in precision machining applications. This solid carbide insert features a TiCrAlN\/TiN PVD coating that provides wear resistance and extended tool life under demanding cutting conditions. It is configured for right-hand internal threading at 8 threads per inch with a 60-degree included angle. The 3\/8-inch inscribed circle and 0.1563-inch thickness make it suited to standard toolholders in the 266 insert family. Machinists and toolroom professionals in metalworking, pipe fitting, and industrial manufacturing environments are the primary installers.\u003c\/p\u003e\n\u003cp\u003eThis insert is used in CNC lathes and turning centers performing internal NPT thread-cutting operations on pipe fittings, valves, and related components. The NPT thread standard makes it appropriate for pressure-bearing fluid and gas system components where tapered thread engagement is required. The single-tooth-per-side geometry and A chipbreaker designation support controlled chip formation during threading passes. It is sold individually with a minimum order quantity of 10 units, making it suitable for shop stocking or job-lot procurement.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide substrate with TiCrAlN\/TiN PVD coating for wear and heat resistance\u003c\/li\u003e\n  \u003cli\u003eRight-hand internal NPT thread configuration at 8 TPI with 60-degree included angle\u003c\/li\u003e\n  \u003cli\u003e3\/8-inch (9.53 mm) inscribed circle fits standard CoroThread 266 toolholders\u003c\/li\u003e\n  \u003cli\u003eA chipbreaker geometry promotes controlled chip evacuation during threading\u003c\/li\u003e\n  \u003cli\u003eInsert Style 266 with size code 16 for straightforward toolholder matching\u003c\/li\u003e\n  \u003cli\u003e0.1563-inch (3.97 mm) thickness consistent with 266-series seating requirements\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with SANDVIK COROMANT CoroThread 266 series toolholders accepting insert style 266, size code 16, with a 3\/8-inch inscribed circle. Confirm toolholder seat geometry and clamping configuration before installation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist or toolroom technician. Power down and lock out the machine spindle before seating or replacing the insert. Use the appropriate torx or clamping screw torque per the toolholder manufacturer documentation — do not overtighten, as carbide inserts are brittle. Verify insert orientation and seating before resuming any cutting operation.\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\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: 1135\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\u003eThread Type\u003c\/strong\u003e: Internal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: NPT\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 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\u003ePackage Dimensions\u003c\/strong\u003e: 3.74 inches L x 1.54 inches W x 0.43 inches H\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: 5781994\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51748836966706,"sku":"5781994","price":612.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5929439e42fa52d950984d662a610ba4_7fcc9013-8bb6-4e47-b241-dbb10ccc016f.jpg?v=1788899291","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-5781994-threading-insert-8-tpi-npt","provider":"Voomi Supply","version":"1.0","type":"link"}