{"product_id":"osg-5677600-square-end-mill-1-8-in-4-flute-cobalt","title":"Osg 5677600 Square End Mill 1\/8 in 4 Flute Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 5677600 is a double-end cobalt square end mill designed for metal cutting applications in machining environments. Built from M42 cobalt high-speed steel, it delivers improved heat resistance and wear life compared to standard HSS tooling. The mill features a 0.125-inch diameter, a 0.375-inch length of cut, and four right-hand spiral flutes with a 30-degree helix angle. It is center-cutting, allowing plunge cuts in addition to peripheral and slot milling. The bright, uncoated finish suits a range of workpiece materials and makes it easy to inspect for wear. Series 567 designates the OSG regular-length double-end geometry.\u003c\/p\u003e\u003cp\u003eThis end mill is suited for general-purpose slot milling, profiling, and step milling on ferrous and non-ferrous materials. Its compact 0.125-inch diameter makes it applicable for fine-feature work, narrow slots, and detail passes where larger tooling cannot fit. The double-end configuration provides two usable cutting ends, extending tool life between replacements. Typical install and operation is performed by machinists and tool-and-die tradespeople working on CNC machining centers, knee mills, or manual milling machines.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM42 cobalt high-speed steel construction for elevated heat resistance and extended tool life\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\u003e4 right-hand spiral flutes at 30-degree helix for efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eBright, uncoated finish for easy wear inspection across a range of materials\u003c\/li\u003e\n\u003cli\u003eRegular-length Series 567 profile for standard reach machining\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct fitment end mill for standard 3\/16-inch collets or end mill holders on CNC and manual milling machines accepting a 0.1875-inch shank diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist. Ensure the milling machine spindle is fully powered down and locked before changing tooling. Secure the shank to the specified depth in a properly sized collet or end mill holder and torque the retention hardware per the machine manufacturer's guidelines. Verify runout with a dial indicator before beginning a cut to avoid premature tool failure or dimensional error.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 1\/8 inch (0.1250 inches)\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)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 3\/8 inch (0.3750 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/16 inch (0.1875 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2-1\/4 inches (2.2500 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\u003eCenter Cutting\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: Bright\/Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 567\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: 5677600\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51729482383666,"sku":"5677600","price":58.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f1633686c301139987bde6642791baf9.jpg?v=1788705129","url":"https:\/\/voomisupply.com\/products\/osg-5677600-square-end-mill-1-8-in-4-flute-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}