{"product_id":"osg-5222100-square-end-mill-5-8-inch-2-flute-cobalt","title":"Osg 5222100 Square End Mill 5\/8 Inch 2 Flute Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 5222100 is a cobalt square end mill designed for general-purpose milling operations in machine shop and production environments. Built from M42 cobalt high-speed steel, this double-end tool delivers two usable cutting ends, extending tool life between replacements. It features a 5\/8 inch cutting diameter, a 1-1\/8 inch length of cut, and a 4-1\/2 inch overall length. The 30-degree spiral flute geometry promotes efficient chip evacuation and smooth cutting action across a range of workpiece materials. Center-cutting capability allows for direct plunging into workpiece stock without a pre-drilled entry point. Licensed machinists and CNC operators are the primary users of this end mill in both manual and automated milling setups.\u003c\/p\u003e\u003cp\u003eThis end mill is suited for slotting, profiling, and contouring operations on ferrous and non-ferrous metals, including stainless steel, alloy steels, and cast iron where cobalt tooling is preferred over standard HSS. The uncoated finish makes it a practical choice for operations where regrinding is part of the shop workflow. Its regular-length classification places it in standard reach applications where extended-reach tooling is not required. The right-hand cut and right-hand flute configuration is compatible with standard spindle rotation on conventional and CNC milling machines.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM42 cobalt construction for improved heat and wear resistance over standard HSS\u003c\/li\u003e\n\u003cli\u003eDouble-end design provides two cutting ends per tool\u003c\/li\u003e\n\u003cli\u003eCenter-cutting geometry allows direct plunge entry into workpiece\u003c\/li\u003e\n\u003cli\u003e30-degree helix angle promotes chip evacuation in spiral flute configuration\u003c\/li\u003e\n\u003cli\u003eUncoated finish supports regrinding and resharpening in-house\u003c\/li\u003e\n\u003cli\u003eRight-hand cut and right-hand flute for standard spindle compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-use end mill for standard 5\/8 inch collets and end mill holders on conventional and CNC vertical milling machines. Part of the OSG Series 522 product line.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by a qualified machinist or CNC operator. Ensure the milling machine spindle is fully stopped and locked out before changing tooling. Secure the shank in a properly sized collet or end mill holder torqued to the machine manufacturer's specification. Verify runout with a dial indicator before beginning cutting operations to avoid premature tool wear or workpiece damage.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 5\/8 inch (0.6250 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 1-1\/8 inch (1.1250 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 5\/8 inch (0.6250 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4-1\/2 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)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 30 degrees\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\u003eDouble End\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 522\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: 5222100\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51751137214770,"sku":"5222100","price":136.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ebfc8372908ab0edf4094f10ca464d09.jpg?v=1788921819","url":"https:\/\/voomisupply.com\/products\/osg-5222100-square-end-mill-5-8-inch-2-flute-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}