{"product_id":"walter-8115569-cnmg432-mp5-wpp20g-turning-insert","title":"Walter 8115569 CNMG432-MP5 WPP20G Turning Insert","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe WALTER 8115569 is a CNMG432-MP5 WPP20G grade solid carbide turning insert designed for general-purpose metal cutting on CNC lathes and turning centers. It carries a multilayer CVD coating of TiCN, Al2O3, and TiN, which builds heat resistance and wear resistance across a range of cutting conditions. The insert has a neutral hand orientation, an 80-degree diamond shape, a 0.5080-inch inscribed circle, and a 0.0315-inch corner radius. The MP5 chip breaker geometry features a chamfered and honed cutting edge with a negative rake angle of 15 degrees, controlling chip flow during roughing and semi-finishing passes on steel and cast iron.\u003c\/p\u003e\u003cp\u003eThis insert is suited for turning, facing, and boring operations in both production and job-shop environments. It is designed primarily for steel workpieces (ISO material code P) and secondarily for cast iron (ISO material code K), making it a practical choice for mixed-material shops running medium to heavy material removal. The WPP20G grade targets consistent performance across a broad range of cutting parameters on ferrous materials. It is clamped and pin-held in compatible CNMG toolholders. The ISO designation for this insert is CNMG120408-MP5 WPP20G.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMultilayer CVD coating: TiCN, Al2O3, and TiN for wear and heat resistance\u003c\/li\u003e\n\u003cli\u003eMP5 chip breaker with chamfered and honed edge for controlled chip formation\u003c\/li\u003e\n\u003cli\u003e80-degree diamond (C-shape) insert with negative rake for strength and stability\u003c\/li\u003e\n\u003cli\u003eFour cutting edges per insert maximizing cost-per-edge value\u003c\/li\u003e\n\u003cli\u003eClamp and pin holding method for secure seating in standard CNMG toolholders\u003c\/li\u003e\n\u003cli\u003eMulti-use application: turning, facing, and boring on a single insert style\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eFits standard CNMG-style toolholders designed for CNMG432 inserts with clamp and pin holding. Compatible with ISO CNMG120408 toolholder seats. Intended for primary use on steel (P20 material grade) and secondary use on cast iron (K30 material grade).\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or tooling technician. Power down and lock out the machine before changing inserts. Seat the insert fully in the pocket and verify the clamp and pin are fully engaged before resuming cutting. Inspect the toolholder seat and pin for wear or damage each time inserts are rotated or replaced.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: CNMG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustry Standard Number\u003c\/strong\u003e: CNMG432-MP5 WPP20G\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: CNMG120408-MP5 WPP20G\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: Diamond 80 (C)\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: 0.5000 inches\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\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.2030 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 0.5080 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 0 degrees (Clearance Code N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRake\u003c\/strong\u003e: Negative\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRake Angle\u003c\/strong\u003e: 15 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\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\u003eChip Breaker\u003c\/strong\u003e: MP5\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 Holding Method\u003c\/strong\u003e: Clamp and Pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiCN, Al2O3, TiN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: CVD Multilayer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: WPP20G\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: P20, K30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Material\u003c\/strong\u003e: Cast Iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI, ISO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance Code\u003c\/strong\u003e: M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: CNMG-MP5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Size Code\u003c\/strong\u003e: 432\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.2 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: 8115569\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WALTER","offers":[{"title":"Default Title","offer_id":51972854939954,"sku":"8115569","price":300.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0ecaa17538b9ccd735185daac0e94e32_4a1bfae2-f994-45e2-a12a-7886cbd331cf.jpg?v=1789970961","url":"https:\/\/voomisupply.com\/products\/walter-8115569-cnmg432-mp5-wpp20g-turning-insert","provider":"Voomi Supply","version":"1.0","type":"link"}