{"product_id":"walter-6356990-turning-insert-snmg643-mk5-wkk10s-carbide","title":"Walter 6356990 Turning Insert SNMG643-MK5 WKK10S Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe WALTER 6356990 is a SNMG-style square turning insert designed for demanding metal removal operations in CNC turning centers and manual lathes. Built from solid carbide and finished with a CVD-applied TiCN\/Al2O3\/TiCN multilayer coating under the proprietary WKK10S grade designation, this insert delivers thermal resistance and wear life suited to interrupted and continuous cuts. The MK5 chip breaker geometry features a chamfered and honed cutting edge with a negative rake angle of 14 degrees. The inscribed circle measures 0.75 inches, insert thickness is 0.25 inches, and corner radius is 0.0469 inches. Eight cutting edges are available per insert, lowering cost per edge on high-volume production runs.\u003c\/p\u003e\u003cp\u003eThis insert is suited for turning, facing, and boring operations where the primary workpiece material is cast iron, with secondary capability on hard materials. The negative rake SNMG geometry and CVD coating combination make it appropriate for finishing to medium roughing passes. It is held in place by a clamp and pin method, compatible with standard SNMG toolholders used in production machining environments. Machinists and CNC operators in job shops, production facilities, and contract manufacturing operations will find this insert effective for consistent results on cast iron components.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCVD-coated TiCN\/Al2O3\/TiCN multilayer coating under WKK10S proprietary grade for extended wear resistance on cast iron\u003c\/li\u003e\n\u003cli\u003eMK5 chip breaker geometry with chamfered and honed cutting edge for controlled chip formation\u003c\/li\u003e\n\u003cli\u003e8 cutting edges per insert for reduced tooling cost per edge\u003c\/li\u003e\n\u003cli\u003eNegative rake angle with SNMG square insert shape for strong edge support during heavy cuts\u003c\/li\u003e\n\u003cli\u003eMaximum depth of cut of 0.315 inches (8.00 mm) for medium to heavy stock removal\u003c\/li\u003e\n\u003cli\u003eMulti-use application: turning, facing, and boring from a single insert style\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in standard SNMG toolholders using a clamp and pin holding method. Conforms to ANSI and ISO standards; ISO code SNMG190612-MK5 WKK10S. Insert size code 643. Primary workpiece material is cast iron (ISO material code K); secondary workpiece material is hard material (ISO material code H). Material grades H30 and K10.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or tooling technician with the machine powered down and in a locked-out state before changing inserts. Verify that the toolholder pocket and clamping pin are clean and free of chips before seating the insert. Torque the clamp screw according to the toolholder manufacturer specifications, not from this insert data. Confirm proper insert orientation and edge engagement before resuming machine operation.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: SNMG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: Square\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: Tiger-tec Silver SNMG-MK5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: WKK10S\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 \/ TiCN (CVD)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: MK5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.75 inches (3\/4 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 0.75 inches (3\/4 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 0.25 inches (1\/4 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0469 inches (3\/64 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.312 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 0.315 inches (8.00 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 8\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: 14 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 0 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance Code\u003c\/strong\u003e: N\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance Code\u003c\/strong\u003e: M\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\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 (Code K)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Material\u003c\/strong\u003e: Hard Material (Code H)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: H30, K10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplications\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\u003eISO Code\u003c\/strong\u003e: SNMG190612-MK5 WKK10S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustry Standard Number\u003c\/strong\u003e: SNMG643-MK5 WKK10S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23242105\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 6.99 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: 6356990\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WALTER","offers":[{"title":"Default Title","offer_id":52118966927666,"sku":"6356990","price":652.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/831447f4c7944d000489ab1f4bef54f1.jpg?v=1790082605","url":"https:\/\/voomisupply.com\/products\/walter-6356990-turning-insert-snmg643-mk5-wkk10s-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}