{"product_id":"osg-8556070-corner-radius-end-mill-4mm-solid-carbide","title":"Osg 8556070 Corner Radius End Mill 4mm Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 8556070 is a solid carbide corner radius end mill designed for precision milling operations across a wide range of metalworking applications. With a 4 mm cutting diameter, 11 mm length of cut, and a 0.2 mm corner radius, this single-end tool delivers controlled edge geometry that reduces stress concentrations at part corners and extends tool life. The variable helix flute design minimizes chatter and vibration during both roughing and finishing passes. A Duarise PVD coating provides enhanced hardness and thermal resistance, making this end mill suitable for demanding materials including steels, stainless steels, cast iron, non-ferrous metals, superalloys, titanium, and hard materials. It is installed by CNC machinists and tool-and-die professionals.\u003c\/p\u003e\u003cp\u003eThis end mill fits standard toolholders with a 6 mm straight-cylindrical shank. It is intended for use in CNC machining centers performing roughing and finishing operations on precision components. The 60 mm overall length and regular length-type classification make it well suited for general-purpose milling where extended reach is not required. The center-cutting capability allows plunge entry, adding flexibility to milling strategies without changing tools.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e4 mm cutting diameter with 0.2 mm corner radius for controlled edge geometry and reduced part stress\u003c\/li\u003e\n\u003cli\u003eVariable helix flute design reduces vibration and chatter during both roughing and finishing\u003c\/li\u003e\n\u003cli\u003eDuarise PVD coating improves hardness and heat resistance for longer tool life\u003c\/li\u003e\n\u003cli\u003eCenter-cutting end allows direct plunge entry into workpiece material\u003c\/li\u003e\n\u003cli\u003eRight-hand cut and right-hand flute direction for standard CNC spindle compatibility\u003c\/li\u003e\n\u003cli\u003eRated for steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and hard materials\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with standard CNC toolholders accepting a 6 mm straight-cylindrical shank. Suitable for machining centers performing operations on steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and hard materials as part of the OSG Series 8215 product line.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and tool changes should be performed by qualified CNC machinists following machine builder guidelines. Ensure the spindle is fully stopped and the machine is in a safe state before inserting or removing the end mill from the toolholder. Verify runout and tool projection before initiating a cut. Follow shop and machine manufacturer specifications for appropriate clamping torque on the toolholder collet or chuck.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 4 mm (0.1575 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: 11 mm (0.4331 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.2 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius Tolerance\u003c\/strong\u003e: 0.00 to -0.02 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: 0.00 to -0.02 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 60 mm (2.362 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 6 mm\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\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\u003eSingle or Double End\u003c\/strong\u003e: Single\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\u003eChipbreaker\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Reach\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\u003ePrimary Workpiece Material\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: 8215\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.21 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: OSG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 8556070\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51754094068018,"sku":"8556070","price":76.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/01c785dee25ce39b4e07acdecb3ad634_42070844-f6f3-4514-8a8f-abd84707261d.jpg?v=1788943361","url":"https:\/\/voomisupply.com\/products\/osg-8556070-corner-radius-end-mill-4mm-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}