{"product_id":"osg-5206200-square-end-mill-1-1-2-in-2-flute-cobalt","title":"Osg 5206200 Square End Mill 1-1\/2 in 2 Flute Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 5206200 is a two-flute, cobalt square end mill designed for milling ferrous and difficult-to-machine materials in metalworking and machining applications. Built from M42 cobalt high-speed steel, it delivers better heat resistance and edge retention compared to standard HSS tooling. The cutter measures 1.5 inches in diameter with a 1.625-inch length of cut, a 1.25-inch shank diameter, and a 4.125-inch overall length. A 30-degree helix angle promotes smooth chip evacuation and stable cutting action. Center-cutting geometry allows the tool to plunge directly into the workpiece. This end mill ships uncoated and is appropriate for machinists and tool-and-die professionals running manual or CNC milling equipment.\u003c\/p\u003e\n\u003cp\u003eThe 5206200 belongs to OSG Series 520 and is suited for regular-length milling operations on machining centers and knee mills. Its right-hand cut and right-hand spiral flute configuration is the standard setup for conventional milling machines. The tool is well-matched to slotting, profiling, and pocketing operations in cobalt-grade applications where tool life under heat is a priority. It does not feature extended reach, chipbreakers, variable helix, or variable index — a straightforward geometry for general-purpose milling tasks.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eM42 cobalt high-speed steel construction for improved heat and wear resistance\u003c\/li\u003e\n  \u003cli\u003eTwo-flute design supports chip clearance in deeper cuts and slotting operations\u003c\/li\u003e\n  \u003cli\u003e30-degree helix angle promotes smooth chip evacuation and reduced cutting forces\u003c\/li\u003e\n  \u003cli\u003eCenter-cutting geometry allows direct plunge entry without a pre-drilled pilot hole\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut, right-hand spiral flute — standard orientation for most milling setups\u003c\/li\u003e\n  \u003cli\u003eUncoated finish — compatible with a wide range of cutting fluids and coolant strategies\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a regular-length OEM-style cobalt square end mill suitable for standard milling machine spindles accepting a 1.25-inch shank diameter. Length of cut range for this series is 1.5 to 2.0 inches.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a machinist or toolroom technician. The machine spindle must be fully stopped and the power supply locked out before changing tooling. Secure the shank in a collet or end mill holder to the manufacturer-specified drawbar torque for the machine in use. Verify runout with a dial indicator before beginning the cut, and confirm coolant flow is appropriate for the workpiece material before engaging the tool.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill 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: 1.25 inches\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\u003eLength Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 520\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: 5206200\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51753821536562,"sku":"5206200","price":295.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/3b16c898ad8f963e419f15b081717998_7bf91d48-882b-4894-bbd3-f06cb76bc052.jpg?v=1788941113","url":"https:\/\/voomisupply.com\/products\/osg-5206200-square-end-mill-1-1-2-in-2-flute-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}