{"product_id":"osg-82104221-corner-radius-end-mill-1-2-in-4-flute-carbide","title":"Osg 82104221 Corner Radius End Mill 1\/2 in 4 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 82104221 is a solid carbide corner radius end mill engineered for high-performance milling across a wide range of materials including steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and hard materials. It carries a 0.5 inch diameter, a 0.015 inch corner radius, and a 1 inch length of cut, with a 3 inch overall length and a 0.5 inch straight cylindrical shank. The Duarise PVD coating improves wear resistance and surface finish quality. A variable helix geometry reduces chatter and harmonics during aggressive cuts. Centercutting capability allows plunge entry directly into the workpiece without a pre-drilled hole. This tool suits both roughing and finishing operations and is sold as a single-end tool in OSG Series 8210.\u003c\/p\u003e\n\u003cp\u003eThe 82104221 is appropriate for use in CNC machining centers and manual mills where close-tolerance contouring and corner profiling are required. The 0.015 inch corner radius reduces stress concentrations at part corners and extends tool life compared to sharp-edge end mills. Its multi-material rating makes it a practical choice for job shops and production environments machining steel alloys, stainless grades, cast iron, aluminum and other non-ferrous metals, superalloys, and hardened materials. The tool seats into a standard toolholder with a cylindrical shank interface and accepts right-hand cutting direction in right-hand spindle rotation.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e0.015 inch corner radius with tolerance of 0.0000 to -0.0008 inches for consistent part geometry\u003c\/li\u003e\n  \u003cli\u003eVariable helix flute design reduces vibration and chatter during cutting\u003c\/li\u003e\n  \u003cli\u003eDuarise PVD coating for improved abrasion resistance across multiple workpiece materials\u003c\/li\u003e\n  \u003cli\u003eCentercutting construction permits direct plunge entry\u003c\/li\u003e\n  \u003cli\u003eSuitable for both roughing and finishing passes in a single tool\u003c\/li\u003e\n  \u003cli\u003eRight-hand flute direction and right-hand cutting rotation for standard CNC setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with standard cylindrical-bore toolholders. Compatible with CNC machining centers and manual mills running right-hand spindle rotation. Shank diameter tolerance is h6 for consistent fit in collet chucks and end mill holders.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists and CNC tooling technicians. Power down or E-stop the machine and confirm spindle is fully stopped before changing tooling. Secure the shank fully into the toolholder to the recommended engagement depth per the toolholder manufacturer before tightening. Inspect the corner radius and flute edges for chips or coating damage before each use, particularly when machining hardened or abrasive materials.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.015 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius Tolerance\u003c\/strong\u003e: 0.0000 to -0.0008 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: 0.0000 to -0.0012 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: 1 inch\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: 0.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter 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\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Duarise (PVD)\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\u003eHelix Style\u003c\/strong\u003e: Variable\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\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 Materials\u003c\/strong\u003e: Steel, Stainless Steel, Cast Iron, Non-Ferrous Metal, Superalloys and Titanium, Hard Material\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 8210\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.29 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: 82104221\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51754756309298,"sku":"82104221","price":212.69,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/470f58fafee1a421c6f02cb5c2cc7466_5e098ecb-b721-46e3-adb0-af8a9b3f90be.jpg?v=1788948462","url":"https:\/\/voomisupply.com\/products\/osg-82104221-corner-radius-end-mill-1-2-in-4-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}