{"product_id":"osg-20555002-corner-radius-end-mill-1-2-in-5-flute-carbide","title":"Osg 20555002 Corner Radius End Mill 1\/2 in 5 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 20555002 is a solid carbide corner radius end mill designed for high-performance metal removal in demanding materials. It features a 1\/2 inch cutting diameter, a 0.03 inch corner radius, and five flutes with a variable helix and variable index geometry. The EXO PVD coating — a TiAlN-class finish — provides heat resistance and extended tool life when cutting stainless steel, superalloys, and hard materials. The Weldon flat shank provides positive torque transfer in standard milling toolholders. This tool is single-end, right-hand cut, and center-cutting, supporting both plunge entry and conventional side milling. It is sized for use in CNC machining centers and manual mills by machinists and tool-and-die professionals.\u003c\/p\u003e\n\u003cp\u003eThe OSG 20555002 belongs to OSG Series 2055, engineered specifically for roughing and finishing operations in stainless steel, titanium, superalloys, and hard materials. With a 1 inch length of cut and 3 inch overall length, it is well suited for cavity milling, profiling, and finishing passes in aerospace, medical, and industrial component work where tight tolerances and surface finish are critical. The variable helix geometry reduces harmonic chatter at higher feeds, improving process stability in difficult-to-machine alloys.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eVariable helix and variable index flute geometry reduces chatter and improves surface finish\u003c\/li\u003e\n  \u003cli\u003eEXO PVD TiAlN coating resists heat buildup in stainless steel, superalloys, and hard materials\u003c\/li\u003e\n  \u003cli\u003eFive flutes provide higher chip load capacity for both roughing and finishing in a single tool\u003c\/li\u003e\n  \u003cli\u003e0.03 inch corner radius reduces corner chipping and stress concentration at workpiece edges\u003c\/li\u003e\n  \u003cli\u003eWeldon flat shank ensures positive drive in standard side-lock toolholders\u003c\/li\u003e\n  \u003cli\u003eUltra fine micrograin carbide substrate maintains edge integrity at elevated cutting temperatures\u003c\/li\u003e\n  \u003cli\u003eCenter-cutting design allows direct plunge entry without pre-drilling\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with standard milling toolholders accepting a 1\/2 inch Weldon flat shank. Primary workpiece materials are stainless steel, superalloys, and hard materials (ISO material codes M, S, and H). Part of the OSG Series 2055 end mill family.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and tool changes should be performed with the machine spindle fully stopped and the control in an e-stop or tool-change state. Secure the Weldon flat shank in a side-lock or set-screw toolholder to the torque specification listed for that holder. Verify runout with a dial indicator before beginning a cut, as excessive runout accelerates edge wear on carbide tools. Follow the machine manufacturer and OSG Series 2055 recommended speeds and feeds for the specific workpiece material.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 1\/2 inch (0.5000 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 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.03 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1\/2 inch (0.5000 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Weldon Flat\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 class)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating Classification\u003c\/strong\u003e: PVD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Style\u003c\/strong\u003e: Variable\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVariable Index\u003c\/strong\u003e: Yes\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\u003eCenter Cutting\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\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\u003eMaterial Removal Type\u003c\/strong\u003e: Roughing and Finishing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Materials\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\u003eShank Diameter Tolerance\u003c\/strong\u003e: h6\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 2055\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.3 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: 20555002\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51734767501618,"sku":"20555002","price":242.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/290ac70f799ecfa4d2f94132fd2a6d21.jpg?v=1788766804","url":"https:\/\/voomisupply.com\/products\/osg-20555002-corner-radius-end-mill-1-2-in-5-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}