{"product_id":"walter-6650918-ccmt432-rk4-turning-insert-carbide","title":"Walter 6650918 CCMT432-RK4 Turning Insert Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe WALTER 6650918 is a solid carbide turning insert in the CCMT432-RK4 WKK10S series, engineered for precision metal cutting in industrial machining environments. This insert carries a CVD-applied multilayer coating of TiCN, Al2O3, and TiCN for high wear resistance and thermal stability. The diamond 80-degree insert shape provides a strong cutting edge geometry with a positive rake angle of 12 degrees and a chamfered and honed cutting edge style. With an inscribed circle of 0.5 inches and a corner radius of 0.0315 inches, it is built for consistent, controlled material removal. Licensed machinists and CNC operators are the typical end users for this insert.\u003c\/p\u003e\u003cp\u003eThis insert is rated for turning, facing, and boring operations. Its primary workpiece material classification is cast iron (ISO material code K), with a secondary rating for hard materials (ISO material code H). The WKK10S proprietary coating designation and material grade H30\/K10 make this insert well suited for finishing and semi-finishing passes on cast iron components. It is held in place by a screw-type clamping method and is designed for use in compatible CCMT-style toolholders. Maximum depth of cut is 0.200 inches (5.00 mm). This is a neutral-hand insert suitable for both right- and left-hand setups depending on the toolholder configuration.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCVD multilayer coating: TiCN, Al2O3, TiCN for wear resistance and heat resistance\u003c\/li\u003e\n\u003cli\u003eDiamond 80-degree insert shape with chamfered and honed cutting edge\u003c\/li\u003e\n\u003cli\u003ePositive rake angle of 12 degrees reduces cutting forces on cast iron\u003c\/li\u003e\n\u003cli\u003eRK4 chip breaker geometry for controlled chip formation\u003c\/li\u003e\n\u003cli\u003e2 cutting edges per insert for extended tool life per unit\u003c\/li\u003e\n\u003cli\u003eCompliant with ANSI and ISO standards; ISO code CCMT120408-RK4 WKK10S\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in CCMT-style screw-clamped toolholders. Compatible with turning, facing, and boring applications on cast iron and hard materials. ISO equivalent designation is CCMT120408-RK4 WKK10S. Verify toolholder pocket specifications before installation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified machinists or CNC tooling technicians. Power down and lock out the machine spindle before changing inserts. Use the correct torque wrench for the clamping screw to avoid cracking the carbide insert body or stripping the screw seat. Inspect the toolholder pocket for debris or wear before seating the new insert.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: CCMT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: Diamond 80\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.5000 inches (12.70 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 0.5080 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 0.1875 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0315 inches (1\/32 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.2170 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 0.200 inches (5.00 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 7 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRake Angle\u003c\/strong\u003e: 12 degrees (Positive)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: RK4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Edge Style\u003c\/strong\u003e: Chamfered and Honed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiCN \/ Al2O3 \/ TiCN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: WKK10S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: H30, K10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Cast Iron (K)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Material\u003c\/strong\u003e: Hard Material (H)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Screw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: CCMT-RK4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI, ISO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: CCMT120408-RK4 WKK10S\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\u003eWeight\u003c\/strong\u003e: 0.018 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: WALTER\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 6650918\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WALTER","offers":[{"title":"Default Title","offer_id":52093718561074,"sku":"6650918","price":336.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c5c12872ce3294470f2e0f137833b3b4_9b5366aa-c846-457a-9d5f-00cb27b85180.jpg?v=1790064801","url":"https:\/\/voomisupply.com\/products\/walter-6650918-ccmt432-rk4-turning-insert-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}