{"product_id":"osg-5200205-square-end-mill-3-16-in-2-flute-cobalt-tin","title":"Osg 5200205 Square End Mill 3\/16 in 2 Flute Cobalt Tin","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 5200205 is a cobalt square end mill designed for general-purpose milling of ferrous and non-ferrous metals. Built from M42 cobalt high-speed steel, it offers improved heat and wear resistance compared to standard HSS tooling. The cutting diameter is 0.1875 inches (3\/16 inch), with a 0.4375-inch (7\/16 inch) length of cut and a 0.375-inch (3\/8 inch) shank diameter. A titanium nitride (TiN) coating is applied to the flute and cutting surfaces to extend tool life and reduce friction. This is a centercutting design, allowing direct plunge entry into the workpiece. The 30-degree helix angle promotes smooth chip evacuation in a variety of milling operations. Machinists and tool-and-die professionals are the primary end users.\u003c\/p\u003e\u003cp\u003eThe 5200205 is suited for face milling, slotting, peripheral milling, and plunge operations on steel, alloy steel, and similar materials. The two-flute geometry provides larger chip clearance, making it well-suited for cutting softer metals and materials where chip packing is a concern. The right-hand cut and right-hand spiral flute configuration is standard for use in conventional CNC machining centers and manual knee mills. Overall length is 2-5\/16 inches, placing this tool in the regular-length category. It is part of the OSG Series 520 cobalt end mill line.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM42 cobalt HSS construction for improved heat resistance over standard M2 HSS\u003c\/li\u003e\n\u003cli\u003eTiN coating reduces friction and extends cutting edge life\u003c\/li\u003e\n\u003cli\u003eCentercutting design allows direct plunge milling without pre-drilling\u003c\/li\u003e\n\u003cli\u003e30-degree helix angle promotes efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eTwo-flute geometry maximizes chip clearance in slotting and softer-material applications\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, right-hand flute — compatible with standard spindle rotation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or standard tooling option for CNC machining centers and manual mills requiring a 3\/8-inch shank, 3\/16-inch diameter square end mill. Part of the OSG Series 520 cobalt end mill line.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstall in a compatible collet, end mill holder, or set-screw holder sized for a 3\/8-inch shank. Confirm runout on the tool holder before operation, as excessive runout accelerates edge wear. Follow your machine tool manufacturer guidelines and applicable shop safety procedures when changing tooling. Power down and lock out the spindle before inserting or removing end mills.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.1875 inches (3\/16 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.4375 inches (7\/16 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.375 inches (3\/8 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.3125 inches (2-5\/16 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Cobalt (M42 HSS)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiN (Titanium Nitride)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 30 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentercutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 520\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Regular\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: 5200205\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51728559079730,"sku":"5200205","price":57.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7997838ccd43e74e26b49522343843bb.jpg?v=1788693314","url":"https:\/\/voomisupply.com\/products\/osg-5200205-square-end-mill-3-16-in-2-flute-cobalt-tin","provider":"Voomi Supply","version":"1.0","type":"link"}