{"product_id":"osg-5810200-square-end-mill-0-1575-in-4-flute-cobalt","title":"Osg 5810200 Square End Mill 0.1575 in 4 Flute Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 5810200 is a cobalt square end mill designed for general-purpose milling operations in ferrous and non-ferrous materials. Built from M42 cobalt high-speed steel, it delivers heat resistance and edge retention without a coating. The cutter measures 0.1575 inches in diameter with a 7\/16-inch length of cut and runs a 30-degree spiral helix with four flutes for efficient chip evacuation. Right-hand cut and right-hand flute geometry makes it compatible with standard vertical milling setups. Machinists and tool-and-die professionals use this end mill for slotting, profiling, and peripheral milling in production and job-shop environments.\u003c\/p\u003e\n\u003cp\u003eThis end mill fits residential and commercial machine shop applications wherever a small-diameter, four-flute cobalt cutter is required. The 3\/8-inch shank diameter seats in standard collets and end mill holders on CNC machining centers and manual knee mills alike. Its regular-length body suits typical cavity and contour work within the 0.3000 to 0.5000-inch length-of-cut range. The Series 581 designation places it within OSG's cobalt uncoated end mill family, making it a direct catalog selection for shops that standardize on that series.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eM42 cobalt HSS construction provides elevated heat and wear resistance compared to standard M2 HSS\u003c\/li\u003e\n  \u003cli\u003eFour-flute spiral design promotes smooth surface finish and stable cutting action\u003c\/li\u003e\n  \u003cli\u003e30-degree helix angle balances chip lift with radial cutting force\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut and right-hand flute geometry for use in conventional milling machine spindles\u003c\/li\u003e\n  \u003cli\u003eUncoated finish allows easy resharpening and suits applications where coating adhesion is a concern\u003c\/li\u003e\n  \u003cli\u003eNon-centercutting — intended for peripheral and slot milling, not plunge cutting\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style catalog replacement within the OSG Series 581 cobalt uncoated end mill line, compatible with any standard 3\/8-inch collet or end mill holder on CNC or manual milling machines.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist with the spindle fully powered down and locked out before changing tooling. Seat the 3\/8-inch shank fully into the collet or holder and torque the retention nut to the machine manufacturer's specification. This end mill is non-centercutting and must not be used for plunge operations; ramp or helical entry is required when moving axially into material. Inspect the cutting edges for chipping before each use and replace or resharpen as needed to maintain dimensional accuracy.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.1575 inches (4.00 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\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\u003eLength of Cut\u003c\/strong\u003e: 7\/16 inch (0.4375 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut Range\u003c\/strong\u003e: 0.3000 to 0.5000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/8 inch (0.3750 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2-3\/8 inches\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: No\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: 581\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: 5810200\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51747468542258,"sku":"5810200","price":47.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/fa782c03fe5cc1c6b8389a7fb90a0c9d.jpg?v=1788880735","url":"https:\/\/voomisupply.com\/products\/osg-5810200-square-end-mill-0-1575-in-4-flute-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}