{"product_id":"gws-311987-corner-radius-end-mill-1-25-in-5-flute-carbide","title":"Gws 311987 Corner Radius End Mill 1.25 in 5 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe GWS 311987 is a solid carbide corner radius end mill engineered for demanding material removal in steel, stainless steel, superalloys, and titanium. Built to Series 2205 specifications, it features a 1.25-inch mill diameter, a 0.12-inch corner radius, and five flutes with a variable helix and variable index geometry. The FX3 AlCr-based coating delivers thermal resistance and extended tool life in high-heat cutting environments. At 6 inches overall length with a 2.625-inch length of cut, this single-end tool handles both roughing and finishing passes. It installs in standard end mill holders with a 1.25-inch straight cylindrical shank held to h6 tolerance.\u003c\/p\u003e\n\u003cp\u003eThis end mill is suited for CNC machining centers running ferrous and exotic alloys in aerospace, toolroom, die and mold, and general manufacturing applications. The right-hand helical flute geometry with normal pitch supports aggressive material removal rates while the corner radius reduces edge chipping and extends part surface finish quality. Cast iron is listed as a secondary workpiece material. The centercutting design allows plunge entry where the operation requires it.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide submicron-grade substrate for rigidity and wear resistance in hard materials\u003c\/li\u003e\n  \u003cli\u003eVariable helix and variable index geometry reduces harmonic chatter during high-feed cuts\u003c\/li\u003e\n  \u003cli\u003e0.12-inch corner radius protects the cutting edge and improves surface finish at part corners\u003c\/li\u003e\n  \u003cli\u003eFX3 AlCr coating rated for steel, stainless steel, superalloys, and titanium\u003c\/li\u003e\n  \u003cli\u003eCentercutting capable  -  supports direct plunge milling without a pre-drilled pilot\u003c\/li\u003e\n  \u003cli\u003eStraight cylindrical shank at h6 tolerance for consistent runout in end mill holders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with standard end mill holders. Primary workpiece materials are steel, stainless steel, superalloys, and titanium; secondary workpiece material is cast iron. Shank diameter is 1.25 inches with h6 tolerance for collet and hydraulic holder fitment.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by qualified CNC machinists or toolroom technicians. Secure the shank fully within the end mill holder to the manufacturer-specified gauge line before tightening; never leave the shank partially engaged. Confirm spindle runout at the tool tip before cutting, as excessive runout accelerates corner radius wear and degrades surface finish. Follow machine tool builder guidelines for tool change lockout and spindle orientation before handling.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 1.25 inches (31.75 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 2.625 inches (66.67 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6 inches (152.40 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.12 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1.25 inches (31.75 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Tolerance\u003c\/strong\u003e: h6\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 (Submicron Grade)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: FX3 (AlCr)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Style\u003c\/strong\u003e: Variable\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\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\u003eCentercutting\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\u003eMaterial Removal Type\u003c\/strong\u003e: Roughing and Finishing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel, Stainless Steel, Superalloys, Titanium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Material\u003c\/strong\u003e: Cast Iron\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 2205\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 4.53 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: GWS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 311987\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GWS","offers":[{"title":"Default Title","offer_id":51972301390130,"sku":"311987","price":1249.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5f2ae90ccdba7fda5776e41759339db7_daba6104-71c7-435a-b9ce-079fe93a6fed.jpg?v=1789965804","url":"https:\/\/voomisupply.com\/products\/gws-311987-corner-radius-end-mill-1-25-in-5-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}