{"product_id":"kennametal-1712664-threading-insert-12-tpi-un-carbide","title":"Kennametal 1712664 Threading Insert 12 Tpi Un Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 1712664 is a laydown threading insert designed for single-point internal threading operations on CNC lathes and turning centers. Manufactured from solid carbide in grade KC5025 with a PVD-applied TiAlN coating, this insert cuts right-hand UN internal threads at 12 threads per inch (TPI). The LT16NR12UNCB geometry uses an NR insert style with a CB chipbreaker, giving machinists clean chip evacuation in through-hole and blind-hole threading passes. With a 3\/8 inch (9.53 mm) inscribed circle and 0.1430 inch (3.44 mm) thickness, the insert seats consistently in compatible LT16 toolholders. Machining professionals installing this insert work primarily with steel, stainless steel, cast iron, superalloys, and titanium workpieces.\u003c\/p\u003e\u003cp\u003eThis insert is suited for production threading in job shop and high-volume CNC turning environments. The KC5025 carbide grade with TiAlN PVD coating is engineered for interrupted cuts and abrasive materials, making it a practical choice for aerospace, oil and gas, and general machining applications where UN internal threads are specified. The 12 TPI pitch is commonly required for standard fastener and fitting thread profiles across a wide range of bore diameters.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide KC5025 grade with PVD TiAlN coating for extended tool life on steel, stainless, and superalloys\u003c\/li\u003e\n\u003cli\u003eNR insert style with CB chipbreaker for controlled chip formation during internal threading\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, UN thread standard at 12 TPI\u003c\/li\u003e\n\u003cli\u003e3\/8 inch (9.53 mm) inscribed circle — fits LT16 series toolholders\u003c\/li\u003e\n\u003cli\u003eThickness of 0.1430 inch (3.44 mm) for consistent seating and repeatability\u003c\/li\u003e\n\u003cli\u003eHole diameter of 0.1551 inch (3.94 mm) for standard clamping screw fitment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in LT16 series laydown threading toolholders that accept NR-style inserts with a 3\/8 inch inscribed circle. Compatible workpiece materials include steel, stainless steel, cast iron, superalloys, and titanium as specified by the manufacturer.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified machinists following standard CNC lathe tooling change procedures. Power down and lock out the spindle before seating or removing the insert. Use the manufacturer-specified clamping screw torque procedure for LT16 toolholders and confirm the insert seats flush with no rocking before resuming cuts. Inspect the seating pocket for chips or debris before each insert change to maintain positional accuracy.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: NR\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: KC5025\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: 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: Internal\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 TPI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChipbreaker\u003c\/strong\u003e: CB\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: 0.1430 inch (3.44 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.1551 inch (3.94 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Edge to Theoretical Edge Length\u003c\/strong\u003e: 0.0430 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFace of Insert to Tip Centerline\u003c\/strong\u003e: 0.0590 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel, Stainless Steel, Cast Iron, Superalloys and Titanium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: LT16NR12UNCB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23291804\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.0086 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: KENNAMETAL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1712664\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51733689827634,"sku":"1712664","price":646.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5fd75377b78c8179b7da774b10b2ca8f.jpg?v=1788758223","url":"https:\/\/voomisupply.com\/products\/kennametal-1712664-threading-insert-12-tpi-un-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}