{"product_id":"osg-5205500-square-end-mill-1-1-2-in-2-flute-cobalt","title":"Osg 5205500 Square End Mill 1-1\/2 in 2 Flute Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 5205500 is a cobalt square end mill designed for material removal in milling operations on machining centers and manual mills. Built from M42 cobalt high-speed steel, this tool provides good heat and wear resistance for cutting ferrous and non-ferrous metals. It measures 1.5 inches in cutting diameter with a 1.625-inch length of cut and a 1-inch shank diameter, giving it a solid, rigid setup for heavier cuts. The 4.125-inch overall length suits standard spindle clearance in most vertical mills. A licensed machinist or tooling technician typically selects and installs this end mill for roughing and finishing passes in job shop, production, or maintenance machining environments.\u003c\/p\u003e\u003cp\u003eThis end mill fits applications where a right-hand spiral, center-cutting tool is required. The 30-degree helix angle promotes chip evacuation and smooth cutting action. The two-flute geometry provides chip clearance suited to softer metals, aluminum, and general-purpose slotting or profiling. It is uncoated, making it appropriate for use with cutting fluid in conventional milling setups. This is a regular-length Series 520 tool from OSG, suited to shops that need a capable, general-purpose cobalt end mill for day-to-day machining tasks.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM42 cobalt high-speed steel construction for improved heat resistance over standard HSS\u003c\/li\u003e\n\u003cli\u003e1.5-inch cutting diameter with 1.625-inch length of cut\u003c\/li\u003e\n\u003cli\u003e2-flute spiral design for chip clearance in slotting and profiling\u003c\/li\u003e\n\u003cli\u003e30-degree helix angle promotes efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eCenter-cutting capable — suitable for plunge entry\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, right-hand flute, uncoated finish\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style tooling solution for use in milling machines accepting a 1-inch straight shank end mill holder. Fits standard ER collet chucks, Weldon-style side-lock holders, and hydraulic chuck systems sized for a 1-inch shank.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and tool changes must be performed by a qualified machinist with the spindle fully stopped and the machine in a locked or e-stopped state. The shank should be clean and free of chips before seating in the holder. Torque the set screw or collet nut to the holder specification — do not use the tool manufacturer torque values as a substitute for holder specifications. Always verify runout with a dial indicator after securing the tool before beginning a cut.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 1.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 1.625 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4.125 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\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\u003eCoating\u003c\/strong\u003e: Uncoated\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: 5205500\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51729911316786,"sku":"5205500","price":295.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/3b16c898ad8f963e419f15b081717998_9b4bb4c6-45fd-4f51-b87b-9ed34d33d4c6.jpg?v=1788709822","url":"https:\/\/voomisupply.com\/products\/osg-5205500-square-end-mill-1-1-2-in-2-flute-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}