{"product_id":"kennametal-1181989-ceramic-turning-insert-cnga432t0820","title":"Kennametal 1181989 Ceramic Turning Insert CNGA432T0820","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KENNAMETAL 1181989 is a ceramic turning insert in the KENLOC series, manufactured under industry standard CNGA432T0820 with a KY3500 silicon nitride grade. Designed for high-speed machining of cast iron, this uncoated insert features an 80-degree diamond (rhombic) shape, a flat-top chip breaker, and a T-Land cutting edge style. It carries a negative rake angle with neutral hand orientation, making it suitable for high wear-resistance to moderate wear-resistance and toughness applications. With 4 cutting edges and a 0.5-inch inscribed circle, it delivers consistent material removal in turning, facing, and boring operations on CNC lathes and machining centers.\u003c\/p\u003e\n\u003cp\u003eThis insert is intended for primary use on cast iron workpieces in production turning environments, both in roughing and finishing passes where wear resistance is the priority. The KY3500 silicon nitride ceramic grade performs at elevated cutting speeds where carbide inserts would wear prematurely. Typical applications include turning, facing, and boring on gray cast iron, ductile iron, and similar ferrous materials. It is held in place using a clamp and pin method, compatible with standard CNGA-style toolholders conforming to ANSI and ISO specifications.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSilicon nitride ceramic grade KY3500 optimized for high wear-resistance on cast iron\u003c\/li\u003e\n  \u003cli\u003e80-degree diamond insert shape with T-Land cutting edge for reliable edge strength\u003c\/li\u003e\n  \u003cli\u003e4 cutting edges per insert for extended tool life per unit\u003c\/li\u003e\n  \u003cli\u003eFlat-top chip breaker geometry for consistent chip control in turning, facing, and boring\u003c\/li\u003e\n  \u003cli\u003eNegative rake, neutral hand — fits standard CNGA clamp-and-pin toolholders\u003c\/li\u003e\n  \u003cli\u003eConforms to ANSI insert code CNGA432 and ISO insert code CNGA120408\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in CNGA-style toolholders with clamp and pin insert retention, conforming to ANSI and ISO standards. Compatible with toolholder setups accepting CNGA432 (ANSI) or CNGA120408 (ISO) size code inserts.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis insert is installed by a machinist or tooling technician into a CNGA-compatible toolholder using the clamp-and-pin retention method. Power down the machine and engage all lockouts before changing inserts. Inspect the toolholder pocket and seating surface for chips or debris before seating the insert. Do not exceed the maximum depth of cut of 0.0492 inches per pass as specified for this grade and geometry.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndustry Standard Number\u003c\/strong\u003e: CNGA432T0820\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eANSI Insert Code\u003c\/strong\u003e: CNGA432\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eISO Insert Code\u003c\/strong\u003e: CNGA120408\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: Ceramic - Silicon Nitride\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating \/ Finish\u003c\/strong\u003e: Uncoated (Bright)\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\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRake Angle\u003c\/strong\u003e: 0 degrees (Negative)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 0 degrees\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\u003eInscribed Circle\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 12.9 mm (0.5077 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 0.1875 inches (3\/16 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0313 inches (1\/32 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.2031 inches\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\u003eInsert Holding 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\u003eTolerance Code\u003c\/strong\u003e: G\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClearance Code\u003c\/strong\u003e: N\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMulti-Use Application\u003c\/strong\u003e: Turning, Facing, Boring\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: 0.022 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1 insert per package (minimum order 5)\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: 1181989\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51748628103474,"sku":"1181989","price":223.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4de58aba76b6ed0b76aef7a2762c1432.jpg?v=1788895910","url":"https:\/\/voomisupply.com\/products\/kennametal-1181989-ceramic-turning-insert-cnga432t0820","provider":"Voomi Supply","version":"1.0","type":"link"}