{"product_id":"osg-20555001-corner-radius-end-mill-1-2-in-5-flute-carbide","title":"Osg 20555001 Corner Radius End Mill 1\/2 in 5 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 20555001 is a solid carbide corner radius end mill engineered for high-performance material removal in demanding applications. It carries a 1\/2-inch diameter, a 5\/8-inch length of cut, and a 0.03-inch corner radius that reduces stress concentration at the cutting edge. The tool is coated with OSG EXO (TiAlN-based PVD coating), which provides elevated heat resistance and wear protection during aggressive cutting. With five flutes and a variable helix design, it manages chip evacuation and minimizes chatter on difficult workpiece materials. Qualified machinists and CNC operators working with stainless steel, superalloys, titanium, and hard materials will find this tool appropriate for both roughing and finishing operations.\u003c\/p\u003e\n\u003cp\u003eThis end mill is designed primarily for stainless steel, superalloys, titanium, and hard materials — workpiece material codes M, S, and H. It is suited to vertical machining centers and horizontal mills using a Weldon flat toolholder. The stub-length configuration and 2.5-inch overall length keep the tool rigid in the spindle, reducing deflection when cutting high-hardness alloys. The variable index flute spacing further dampens harmonic vibration during sustained cuts. It is a single-end, center-cutting tool with right-hand flute direction and right-hand cutting direction.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eEXO TiAlN PVD coating for heat resistance and extended tool life in hard and exotic alloys\u003c\/li\u003e\n  \u003cli\u003eVariable helix and variable index geometry reduces chatter and improves surface finish\u003c\/li\u003e\n  \u003cli\u003e0.03-inch corner radius protects cutting edge and reduces workpiece stress risers\u003c\/li\u003e\n  \u003cli\u003eFive flutes for increased feed rates and improved chip load distribution\u003c\/li\u003e\n  \u003cli\u003eCenter-cutting design allows plunge entry and ramping operations\u003c\/li\u003e\n  \u003cli\u003eWeldon flat shank provides positive drive and precise repeatability in compatible toolholders\u003c\/li\u003e\n  \u003cli\u003eUltra fine micrograin carbide substrate supports rigidity and edge retention in tough materials\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with Weldon flat toolholders accepting a 1\/2-inch shank diameter. Primary workpiece materials include stainless steel, superalloys, titanium, and hard materials (ISO material codes M, S, H). Part of the OSG Series 2055 end mill family.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and operation should be performed by qualified machinists or CNC technicians familiar with rotating cutting tool safety. Verify the Weldon flat toolholder is clean, undamaged, and torqued to the toolholder manufacturer specification before running the spindle. Confirm shank engagement depth meets the toolholder minimum before clamping. Never exceed the rated RPM or feed rate for the workpiece material and tool diameter combination as determined by the machinist or programmer.\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\u003eLength of Cut\u003c\/strong\u003e: 5\/8 inch (0.6250 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0300 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5000 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\u003eNumber of Flutes\u003c\/strong\u003e: 5\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 (TiAlN PVD)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Style\u003c\/strong\u003e: Variable\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Weldon Flat\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\u003eMaterial Removal Type\u003c\/strong\u003e: Roughing and Finishing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Corner Radius\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Stub\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\u003ePrimary Workpiece Material\u003c\/strong\u003e: Stainless Steel, Superalloys, Titanium, Hard Material\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 2055\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.2 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: 20555001\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51753008202034,"sku":"20555001","price":224.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d68762ce71a177fa2f2c3943894ca1e5.jpg?v=1788932086","url":"https:\/\/voomisupply.com\/products\/osg-20555001-corner-radius-end-mill-1-2-in-5-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}