{"product_id":"osg-20556252-corner-radius-end-mill-5-8-in-5-flute-carbide","title":"Osg 20556252 Corner Radius End Mill 5\/8 in 5 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 20556252 is a solid carbide corner radius end mill engineered for high-performance material removal in stainless steel, superalloys, and titanium. With a 5\/8 inch cutting diameter, a 0.06 inch corner radius, and five flutes in a variable helix configuration, this tool balances chip evacuation with surface finish quality across both roughing and finishing operations. The EXO PVD coating — a TiAlN-based finish applied by physical vapor deposition — provides thermal resistance and edge hardness at elevated cutting temperatures. Single-end geometry and a Weldon flat shank make it straightforward to set up in a standard toolholder.\u003c\/p\u003e\n\u003cp\u003eThis end mill is intended for use in CNC machining centers handling difficult-to-cut workpiece materials including stainless steel, nickel-based superalloys, titanium, and other hard materials. The variable helix angle reduces harmonic vibration during long cuts, making it well suited for aerospace, medical, and precision manufacturing applications where tool life and dimensional control in tough alloys are critical requirements. It is a single-end tool classified under OSG Series 2055, designed as a regular-length end mill for toolholder mounting.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e0.06 inch corner radius protects the cutting edge and improves fatigue resistance in finished workpiece corners\u003c\/li\u003e\n  \u003cli\u003eVariable helix and variable index geometry dampen vibration for more stable cuts in difficult materials\u003c\/li\u003e\n  \u003cli\u003eEXO PVD TiAlN coating delivers elevated thermal and wear resistance for stainless steel and superalloy applications\u003c\/li\u003e\n  \u003cli\u003eUltra fine micrograin solid carbide substrate for superior edge integrity at high cutting speeds\u003c\/li\u003e\n  \u003cli\u003eCenter-cutting capable with right-hand flute direction and right-hand cutting for standard CNC setups\u003c\/li\u003e\n  \u003cli\u003eWeldon flat shank prevents axial pullout in heavy-engagement milling passes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with standard toolholders accepting a 5\/8 inch Weldon flat shank. Primary workpiece materials are stainless steel, superalloys, titanium, and hard materials (ISO material codes M, S, and H). Part of OSG Series 2055.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully stopped and locked out before inserting or removing the end mill from the toolholder. Verify Weldon flat alignment with the toolholder setscrew before tightening to prevent radial slippage. Confirm runout with a dial indicator after setup, as excessive runout accelerates edge wear in hard-material applications.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 5\/8 inch (0.6250 inches)\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: 1-1\/4 inches (0.6250 inches decimal)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0600 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3-1\/2 inches (3.5000 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 5\/8 inch (0.6250 inches), tolerance h6\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide, Ultra Fine Micrograin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: EXO PVD TiAlN\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\u003eShank Type\u003c\/strong\u003e: Weldon Flat\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Corner Radius\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCenter Cutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSingle or Double End\u003c\/strong\u003e: Single\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: Stainless Steel, Superalloys and Titanium, Hard Material\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: 0.0000 to -0.0020 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 2055\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 4 inches L x 0.82 inches W x 0.82 inches H\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.5 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: OSG\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 20556252\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51730480038194,"sku":"20556252","price":513.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0e3de20daeccabf45873145fda01a0a7.jpg?v=1788718191","url":"https:\/\/voomisupply.com\/products\/osg-20556252-corner-radius-end-mill-5-8-in-5-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}