{"product_id":"osg-5303200-square-end-mill-7-8-in-2-flute-cobalt","title":"Osg 5303200 Square End Mill 7\/8 in 2 Flute Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 5303200 is a cobalt square end mill designed for precision milling in ferrous and difficult-to-machine materials. Built to Series 530 specifications, it features a 7\/8-inch cutting diameter, a 1-7\/8-inch length of cut, and a 3\/4-inch shank diameter with an overall length of 4-1\/8 inches. The 45-degree helix spiral flute geometry promotes efficient chip evacuation and smooth cutting action. Manufactured from M42 cobalt high-speed steel, this tool delivers heat resistance and edge retention in demanding shop environments. It ships uncoated and is intended for machinists and tool-and-die professionals running manual or CNC milling operations.\u003c\/p\u003e\u003cp\u003eThis end mill is suited for peripheral and slot milling in steel, stainless steel, cast iron, and similar ferrous workpiece materials where cobalt-grade tooling is specified. The centercutting design allows direct plunge entry into the workpiece without a pre-drilled hole. The right-hand cut and right-hand flute configuration is standard for conventional vertical and horizontal milling setups. Regular-length geometry fits most standard tool holders and collets accepting a 3\/4-inch shank.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM42 cobalt construction for elevated heat resistance and edge retention\u003c\/li\u003e\n\u003cli\u003e45-degree helix angle for efficient chip flow and reduced cutting forces\u003c\/li\u003e\n\u003cli\u003eCentercutting capable — supports direct plunge milling without pilot hole\u003c\/li\u003e\n\u003cli\u003e2-flute design provides increased chip clearance in slotting applications\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, right-hand flute — standard CNC and manual mill configuration\u003c\/li\u003e\n\u003cli\u003eUncoated finish — compatible with standard cutting fluid application\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct application end mill for milling operations requiring a 3\/4-inch shank, 7\/8-inch diameter, cobalt square end mill in the OSG Series 530 product line.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by a machinist or tooling technician. Ensure the spindle is fully stopped and the machine is in a safe, locked-out state before changing tooling. Secure the shank in a collet or end mill holder rated for the 3\/4-inch shank diameter and verify runout with a dial indicator before cutting. Follow the machine manufacturer and tooling guidelines for appropriate feed and speed settings for the workpiece material.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 7\/8 inch (0.8750 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\u003eLength of Cut\u003c\/strong\u003e: 1-7\/8 inches (1.8750 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/4 inch (0.7500 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4-1\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 45 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\u003eEnd Type\u003c\/strong\u003e: Square (Single End)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 530\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: 5303200\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51731301761330,"sku":"5303200","price":148.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/dbf7b50e95f60eafef44c9d5ecdd8b74.jpg?v=1788729485","url":"https:\/\/voomisupply.com\/products\/osg-5303200-square-end-mill-7-8-in-2-flute-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}