{"product_id":"osg-3056334-ball-end-mill-4mm-2-flute-solid-carbide","title":"Osg 3056334 Ball End Mill 4mm 2 Flute Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 3056334 is a 2-flute solid carbide ball end mill engineered for high-precision finishing of hard materials and high-hardness steels. It carries a 4 mm cutting diameter with a 3.20 mm length of cut and a 2 mm nose radius, forming a true ball-nose profile suited for contoured and profiled surfaces. The DUROREY PVD coating provides elevated hardness and heat resistance at the cutting edge. At 65 mm overall length with a 6 mm straight-cylindrical shank, this is a long-neck, extended-reach tool built for deep-pocket and tall-wall milling where standard-length tools cannot reach. A 30-degree medium helix supports chip evacuation while maintaining edge stability in hard workpiece materials.\u003c\/p\u003e\u003cp\u003eThis end mill is designed for use in CNC machining centers performing finishing and light roughing passes on hard materials, primarily hardened steels and tool steels. The extended neck geometry and long reach make it well suited for die and mold work, deep-cavity profiling, and rib milling where clearance to the holder is limited. The right-hand cut and right-hand flute direction are standard for conventional CNC spindle rotation. The narrow neck diameter of 3.85 mm and 20.80 mm neck length provide clearance in deep features while the 6 mm shank seats securely in collet or end mill holders.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTrue ball-nose profile with 2 mm nose radius for accurate surface contouring\u003c\/li\u003e\n\u003cli\u003eDUROREY PVD coating optimized for cutting hard and high-hardness steel workpieces\u003c\/li\u003e\n\u003cli\u003eExtended-reach, long-neck design with 24 mm reach length and 3.85 mm neck diameter for deep-pocket access\u003c\/li\u003e\n\u003cli\u003eSolid carbide construction for rigidity and minimal deflection in finish-milling applications\u003c\/li\u003e\n\u003cli\u003e30-degree medium helical flutes with right-hand cut for efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eTight mill diameter tolerance of 0.005 mm supports high-precision finishing requirements\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003ePart of the OSG Series 8590 line of high-precision long-neck carbide ball end mills. Intended for use with standard 6 mm collets or end mill holders in CNC machining centers. Suited for hard material and steel workpiece applications as classified under primary material code H and secondary material code P.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified CNC machinist or tooling specialist. Seat the 6 mm straight-cylindrical shank fully into a clean, undamaged collet or end mill holder and torque the retention system per the holder manufacturer specification. Inspect the cutting edge and coating for chips or damage before mounting. Ensure the machine spindle is fully stopped and the tool changer is disabled before handling or changing end mills.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 4 mm (0.1575 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 3.20 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNose Radius\u003c\/strong\u003e: 2 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 65 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 6 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeck Diameter\u003c\/strong\u003e: 3.85 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeck Length\u003c\/strong\u003e: 20.80 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReach Length\u003c\/strong\u003e: 24 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 30 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Helical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: DUROREY (PVD)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: 0.005 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Hard Material\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Material\u003c\/strong\u003e: Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle or Double End\u003c\/strong\u003e: Single\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 8590\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Metric\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.05 pounds\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: 3056334\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51730773475634,"sku":"3056334","price":107.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/60638c19e579978d56152c9d3780ad4c_aa341258-b308-4bc0-86ee-e39f26c1fb28.jpg?v=1788722624","url":"https:\/\/voomisupply.com\/products\/osg-3056334-ball-end-mill-4mm-2-flute-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}