{"product_id":"kennametal-1181994-ceramic-turning-insert-cnga643","title":"Kennametal 1181994 Ceramic Turning Insert CNGA643","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 1181994 is a ceramic, uncoated turning insert in the KENLOC series, manufactured to ANSI code CNGA643 and ISO code CNGA190612. It is made from silicon nitride ceramic in grade KY3500, designed for high wear-resistance to moderate wear-resistance and toughness applications on cast iron workpieces. The insert features an 80-degree diamond (rhombic) shape, a flat top chip breaker, a T-Land cutting edge style, and a negative rake with 0-degree relief angle. With a 3\/4-inch inscribed circle and a 3\/64-inch corner radius, this insert suits precision turning, facing, and boring operations. It is installed and used by machinists and CNC operators in production turning environments.\u003c\/p\u003e\u003cp\u003eThis insert is intended for use on cast iron materials where high wear-resistance is the primary requirement. Its silicon nitride ceramic composition and KY3500 grade make it well-suited for interrupted and continuous cuts in gray cast iron and similar ferrous materials. The flat top geometry and T-Land edge support stable cutting across turning, facing, and boring applications. It mounts using a clamp and pin holding method, compatible with KENLOC-series toolholders.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSilicon nitride ceramic construction in KY3500 grade for high wear-resistance on cast iron\u003c\/li\u003e\n\u003cli\u003e80-degree diamond insert shape (CNGA) with T-Land cutting edge style\u003c\/li\u003e\n\u003cli\u003eFlat top chip breaker geometry for stable chip control\u003c\/li\u003e\n\u003cli\u003e4 cutting edges with neutral hand orientation\u003c\/li\u003e\n\u003cli\u003eUncoated bright finish  -  no coating delamination risk in high-temperature cuts\u003c\/li\u003e\n\u003cli\u003eMulti-use application: turning, facing, and boring\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement for KENLOC-series toolholders accepting CNGA-style inserts with a clamp and pin holding method. Industry standard number CNGA643T0820 applies per ANSI and ISO standards.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by machinists using standard KENLOC-compatible toolholders; verify the clamp and pin seating are secure before operation. Power down and lock out the spindle before indexing or replacing the insert. Inspect the insert pocket for chips or debris that could affect seating and cause premature edge failure. Follow the machine tool manufacturer and toolholder manufacturer specifications for clamp torque.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eANSI Insert Code\u003c\/strong\u003e: CNGA643\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Insert Code\u003c\/strong\u003e: CNGA190612\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustry Standard Number\u003c\/strong\u003e: CNGA643T0820\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: KY3500\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Silicon Nitride Ceramic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: C - Diamond (Rhombic) 80-Degree\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 80 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 3\/4 inch (0.7500 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 19.34 mm (0.7616 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 1\/4 inch (0.2500 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 3\/64 inch (0.0469 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.3122 inches (7.93 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 1.25 mm (0.0492 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 0 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRake Angle\u003c\/strong\u003e: 0 degrees (Negative Rake)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSide Clearance\u003c\/strong\u003e: Negative\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Edge Style\u003c\/strong\u003e: T-Land\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: Flat Top\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHolding Method\u003c\/strong\u003e: Clamp and Pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Cast Iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: KENLOC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI, ISO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.0132 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: 1181994\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":52044548964658,"sku":"1181994","price":565.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/8757aee816e49b3e97666b1d7d59f041.jpg?v=1790029918","url":"https:\/\/voomisupply.com\/products\/kennametal-1181994-ceramic-turning-insert-cnga643","provider":"Voomi Supply","version":"1.0","type":"link"}