{"product_id":"walter-prototyp-6814318-corner-radius-end-mill-head-4-flute","title":"Walter-prototyp 6814318 Corner Radius End Mill Head 4 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe WALTER-PROTOTYP 6814318 is a solid carbide, corner radius end mill head engineered for demanding metal removal in stainless steel and superalloy applications. Carrying the MC251 series designation and catalog number MC251-03.0-A4B050, this single-end tool features a 3.00mm mill diameter with a 0.50mm corner radius and a TiAlN PVD coating classified under the WK40RC material grade. The variable helix flute geometry supports both roughing and finishing operations while reducing chatter, making it a reliable choice for high-precision machining on live tooling setups and CNC milling centers.\u003c\/p\u003e\n\u003cp\u003eThis end mill head is intended for use with compatible straight-cylindrical toolholders in environments where tight tolerances and surface finish quality are critical. Primary target materials are stainless steel (Material Code M) and superalloys including titanium (Material Code S). The extended reach design, with a reach length of 21.00mm and an overall length of 57.00mm, allows access to deeper features without sacrificing rigidity. Suitable for shop floors running precision aerospace, medical, or industrial components where stainless and superalloy workpieces are routine.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction with TiAlN PVD coating (WK40RC grade) for heat and wear resistance in difficult alloys\u003c\/li\u003e\n  \u003cli\u003eVariable helix flute geometry reduces vibration during both roughing and finishing passes\u003c\/li\u003e\n  \u003cli\u003e0.50mm corner radius protects cutting edges and improves tool life at transitions\u003c\/li\u003e\n  \u003cli\u003eExtended reach design (21.00mm reach length) enables access to deeper pockets and features\u003c\/li\u003e\n  \u003cli\u003eCenter-cutting capable with right-hand flute direction and right-hand cutting direction\u003c\/li\u003e\n  \u003cli\u003eh9 mill diameter tolerance and h5 shank diameter tolerance for precise toolholder fit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with straight-cylindrical toolholders accepting a 6.00mm shank diameter. Catalog reference MC251-03.0-A4B050 within the WALTER-PROTOTYP MC251 series.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist familiar with precision toolholder assembly and CNC setup procedures. Ensure the toolholder bore and shank surfaces are clean and free of burrs before seating the end mill head. Confirm machine spindle is fully stopped and locked out before any tool change. Follow the toolholder manufacturer torque specifications for clamping to maintain the h5 shank tolerance interface.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 3.00mm (0.1180 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.50mm (0.0200 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 8.00mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 57.00mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReach Length\u003c\/strong\u003e: 21.00mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 6.00mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiAlN (PVD)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: WK40RC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Variable Helix\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Corner Radius\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSingle or Double End\u003c\/strong\u003e: Single\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCenter Cutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExtended Reach\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChipbreaker\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePitch\u003c\/strong\u003e: Normal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: h9\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: h5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Stainless Steel (Code M)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Material\u003c\/strong\u003e: Superalloys and Titanium (Code S)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Removal Type\u003c\/strong\u003e: Roughing and Finishing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: MC251\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCatalog Number\u003c\/strong\u003e: MC251-03.0-A4B050\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27112803\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.051 pounds\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: WALTER-PROTOTYP\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 6814318\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WALTER","offers":[{"title":"Default Title","offer_id":67913485287730,"sku":"6814318","price":139.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/3d09703eae1029f5614f52f18a867c6c.jpg?v=1791245789","url":"https:\/\/voomisupply.com\/products\/walter-prototyp-6814318-corner-radius-end-mill-head-4-flute","provider":"Voomi Supply","version":"1.0","type":"link"}