{"product_id":"kennametal-1182188-threading-insert-28-tpi-carbide-kc730","title":"Kennametal 1182188 Threading Insert 28 Tpi Carbide KC730","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 1182188 is a carbide threading insert in the Top Notch series, designed for external thread turning on CNC lathes and screw machines. It carries the NTC3R28E designation, indicating a right-hand, external-thread geometry ground to cut 28 threads per inch (TPI) on UN-standard thread forms. The insert is manufactured from a C2\/C3\/C4 carbide substrate and finished with a PVD-applied Titanium Nitride (TiN) coating in the KC730 grade. KC730 is optimized for threading operations where edge sharpness and wear resistance are both critical. Insert size is 3, with a thickness of 0.1949 inches and a tip-to-top measurement of 0.1480 inches.\u003c\/p\u003e\u003cp\u003eThis insert is suited for external threading of UN-standard fastener threads at 28 TPI, a pitch common in fine-thread inch-series applications across aerospace, hydraulic, and precision mechanical assemblies. It is installed in compatible Top Notch series toolholders used in production turning centers and manual lathes. The right-hand designation applies to standard forward-cutting setups. Machinists and toolroom technicians working in job shop or production environments will find this insert appropriate for ferrous and non-ferrous threading where PVD TiN coating extends tool life over uncoated alternatives.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e28 TPI external thread form ground to UN standard with a 60-degree included angle\u003c\/li\u003e\n\u003cli\u003eKC730 carbide grade with PVD Titanium Nitride coating for improved wear resistance\u003c\/li\u003e\n\u003cli\u003eCorner radius of 0.0046 inches (0.12 mm) for precise thread root geometry\u003c\/li\u003e\n\u003cli\u003eInsert size 3 Top Notch series for use in compatible Kennametal toolholders\u003c\/li\u003e\n\u003cli\u003eRight-hand cutting orientation for standard lathe thread-turning setups\u003c\/li\u003e\n\u003cli\u003eLightweight at 0.032 pounds, minimizing toolholder load in multi-insert setups\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in Top Notch series threading toolholders that accept size 3 NTC-style inserts. Consult toolholder documentation to confirm insert pocket geometry before installation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThreading inserts of this type are installed and changed by qualified machinists or toolroom technicians. Power down and lock out the machine spindle before seating or removing any insert. Use the correct Torx or hex key for the clamping screw as specified by the toolholder manufacturer — do not over-tighten or use impact tools on insert clamp screws. Verify thread pitch and hand on the first pass before committing to a full threading cycle.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: NTC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: Top Notch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: KC730\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: C2, C3, C4\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\u003eExternal Pitch\u003c\/strong\u003e: 28 TPI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 60 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish Coating\u003c\/strong\u003e: Titanium Nitride (TiN)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: PVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Size\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.1949 inches (4.95 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTip to Top of Insert\u003c\/strong\u003e: 0.1480 inches (3.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0046 inches (0.12 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.032 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: KENNAMETAL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1182188\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51734006432050,"sku":"1182188","price":238.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/608a4c5d2d0a306108c19ce4684d84f4.jpg?v=1788760448","url":"https:\/\/voomisupply.com\/products\/kennametal-1182188-threading-insert-28-tpi-carbide-kc730","provider":"Voomi Supply","version":"1.0","type":"link"}