{"product_id":"kennametal-1743899-laydown-threading-insert-32-tpi","title":"Kennametal 1743899 Laydown Threading Insert 32 Tpi","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KENNAMETAL 1743899 is a solid carbide laydown threading insert designed for internal UN thread cutting at 32 threads per inch (TPI). Carrying the ISO code LT11NR32UN and manufactured in grade KC5025, this insert features a TiAlN coating applied via PVD process, delivering elevated heat and wear resistance in demanding threading operations. With a 1\/4-inch (6.35 mm) inscribed circle and a thickness of 0.126 inches (3.04 mm), it is sized for precision threading toolholders using the NR insert style. Machinists and CNC operators install this insert in turning centers and dedicated threading lathes when producing internal UN-standard threads in production or job-shop environments.\u003c\/p\u003e\n\u003cp\u003eThis insert is suited for right-hand internal threading applications across a broad range of workpiece materials, including steel, stainless steel, cast iron, superalloys, and titanium. The KC5025 grade is engineered to maintain edge integrity under the interrupted and continuous cutting conditions common in internal threading passes. It is commonly used in CNC turning operations where consistent thread form and tool life are critical, particularly in production runs requiring repeatable 32 TPI UN-standard internal threads.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction in KC5025 grade for wear resistance in steel, stainless, cast iron, superalloys, and titanium\u003c\/li\u003e\n  \u003cli\u003eTiAlN coating via PVD process for improved thermal protection and extended tool life\u003c\/li\u003e\n  \u003cli\u003e32 TPI UN internal thread form, right-hand cut, ISO code LT11NR32UN\u003c\/li\u003e\n  \u003cli\u003e1\/4-inch inscribed circle with NR insert style for compatibility with standard laydown threading toolholders\u003c\/li\u003e\n  \u003cli\u003eThickness of 0.126 inches (3.04 mm) for accurate seating and consistent thread geometry\u003c\/li\u003e\n  \u003cli\u003eHole diameter of 0.128 inches (3.25 mm) for positive mechanical clamping\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-use insert for NR-style laydown threading toolholders accepting size 11 inserts with a 1\/4-inch inscribed circle. Verify toolholder specifications against the LT11NR32UN insert style before installation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThreading inserts should be installed by qualified machinists or CNC tooling technicians with the machine powered down and the spindle fully stopped before any insert change. Use the correct torque wrench per the toolholder manufacturer specifications when tightening the clamping screw — do not over-tighten, as carbide inserts are brittle and can fracture under uneven clamping force. Inspect the insert pocket and clamping seat for chips or debris before seating the new insert. Confirm thread hand, TPI, and insert orientation against the job setup sheet before initiating the first threading pass.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\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: 11\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: LT11NR32UN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: KC5025\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\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: 32\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 1\/4 inch (6.35 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.126 inches (3.04 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.128 inches (3.25 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Edge to Theoretical Edge Length\u003c\/strong\u003e: 0.0240 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFace of Insert to Tip Centerline\u003c\/strong\u003e: 0.0240 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel, Stainless Steel, Cast Iron, Superalloys, Titanium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.0037 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: KENNAMETAL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1743899\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51748379459890,"sku":"1743899","price":591.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a1a11c15b2b23948af0dfbd2c6b8d5f5.jpg?v=1788893152","url":"https:\/\/voomisupply.com\/products\/kennametal-1743899-laydown-threading-insert-32-tpi","provider":"Voomi Supply","version":"1.0","type":"link"}