{"product_id":"gws-121564-corner-radius-end-mill-1-4-in-4-flute-carbide","title":"Gws 121564 Corner Radius End Mill 1\/4 in 4 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe GWS 121564 is a single-end, centercutting corner radius end mill ground from submicron solid carbide and designed for demanding metal removal in both roughing and finishing operations. The cutter runs a 1\/4 inch (6.35 mm) diameter with a 0.06 inch corner radius, four flutes, and a variable helix and variable index geometry that breaks up harmonic chatter during aggressive cuts. Overall length is 2 inches with a 1\/4 inch straight-cylindrical shank held to h6 tolerance for a secure fit in standard end mill holders. The FX1 coating classification and submicron carbide grade support extended tool life in ferrous and hard-material applications.\u003c\/p\u003e\u003cp\u003eThis end mill is suited for CNC machining centers and manual mills where precision profiling, slotting, and contouring are required on steel, cast iron, stainless steel, superalloys, titanium, and hard materials. The corner radius geometry reduces edge chipping at the cutting corner compared to a sharp-corner end mill, making it a practical choice for finishing passes on hardened workpieces as well as semi-finishing in high-temp alloys. The short flute length of approximately 0.312 inches (7.92 mm) provides added rigidity in tight-tolerance pockets and shoulder milling operations.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSubmicron solid carbide construction for rigidity and wear resistance in hard and abrasive materials\u003c\/li\u003e\n\u003cli\u003eVariable helix and variable index flute geometry reduces chatter and improves surface finish\u003c\/li\u003e\n\u003cli\u003e0.06 inch corner radius protects cutting edge and extends tool life versus sharp-corner geometry\u003c\/li\u003e\n\u003cli\u003eCentercutting design allows direct plunge entry into workpiece material\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, right-hand flute configuration compatible with standard end mill holders\u003c\/li\u003e\n\u003cli\u003eDual-purpose material removal rating covers both roughing and finishing operations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with standard end mill holders accepting a 1\/4 inch straight-cylindrical shank. Primary workpiece materials include steel, cast iron, superalloys, titanium, and hard materials. Stainless steel is listed as a secondary workpiece material.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or CNC tooling technician. Ensure the spindle is fully stopped and locked out before changing tooling. Seat the shank to the full recommended engagement depth in the holder and torque the set screw or collet to the holder manufacturer specification. Verify runout with a dial indicator before initiating a cut, particularly when working with hard materials or tight-tolerance profiles.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.2500 inches (6.35 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0600 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 7.92 mm (0.312 inches nominal)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2 inches (50.80 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.2500 inches (6.35 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Tolerance\u003c\/strong\u003e: h6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Submicron Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: FX1\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\u003eCentercutting\u003c\/strong\u003e: Yes\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; Cast Iron; Superalloys and Titanium; Hard Material\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Material\u003c\/strong\u003e: Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 1030\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.07 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: GWS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 121564\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GWS","offers":[{"title":"Default Title","offer_id":51979291361586,"sku":"121564","price":88.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/36537447236c65b4546837f96df8cf93_b492c12a-2cb2-43b7-b49b-4424493bc670.jpg?v=1789980752","url":"https:\/\/voomisupply.com\/products\/gws-121564-corner-radius-end-mill-1-4-in-4-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}