{"product_id":"osg-4400300-ball-end-mill-0-5in-4-flute-cobalt-long","title":"Osg 4400300 Ball End Mill 0.5in 4 Flute Cobalt Long","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 4400300 is a cobalt ball end mill designed for milling operations requiring a full-radius cutting profile. With a 0.5 inch cutting diameter, 2 inch length of cut, and 4 inch overall length, this tool is built for long-reach slotting, profiling, and contouring in ferrous and non-ferrous materials. The 4-flute, right-hand cutting geometry provides a balance of chip evacuation and surface finish quality. The uncoated cobalt construction offers good toughness and heat resistance without a coating, making it suitable for regrinding. Single-end configuration is standard for this series.\u003c\/p\u003e\u003cp\u003eThis ball end mill is suited for job shop and production machining environments where long-length reach is needed in vertical or horizontal machining centers and CNC knee mills. The Series 440 long-length designation means the tool can access deeper cavities and pockets compared to standard-length end mills. It is typically used by machinists working with molds, dies, and complex 3D contoured workpieces. Coarse pitch spacing and a 30-degree helix angle support stable cutting across a range of materials.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e0.5 inch cutting diameter with full ball-end radius for 3D contouring\u003c\/li\u003e\n\u003cli\u003e4 flutes with right-hand cutting and right-hand flute direction\u003c\/li\u003e\n\u003cli\u003e2 inch length of cut for extended reach into deep pockets\u003c\/li\u003e\n\u003cli\u003eCobalt construction for improved heat and wear resistance versus high-speed steel\u003c\/li\u003e\n\u003cli\u003eUncoated finish suitable for regrinding and general-purpose use\u003c\/li\u003e\n\u003cli\u003eSeries 440 long-length designation with coarse pitch geometry\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-use tool for standard 1\/2 inch shank tool holders, collet chucks, and end mill holders used in CNC machining centers and manual mills.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist following shop safety procedures. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Verify the 0.5 inch shank seats fully and evenly in the tool holder and that set screws or collet nuts are torqued to the tool holder manufacturer specification. Confirm runout with a dial indicator before beginning a cut to protect both the tool and the workpiece.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut (LOC)\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length (OAL)\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 30 degrees\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\u003ePitch\u003c\/strong\u003e: Coarse\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Single End Ball\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Reach\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Long\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Cobalt\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: 440\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: 4400300\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51728850813234,"sku":"4400300","price":191.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/183f0206d403c2d52451380f60d03dc2.jpg?v=1788696825","url":"https:\/\/voomisupply.com\/products\/osg-4400300-ball-end-mill-0-5in-4-flute-cobalt-long","provider":"Voomi Supply","version":"1.0","type":"link"}