{"product_id":"osg-402-4331-square-end-mill-0-4331-in-2-flute-solid-carbide","title":"Osg 402-4331 Square End Mill 0.4331 in 2 Flute Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 402-4331 is a solid carbide square end mill engineered for precision milling in demanding production and toolroom environments. With a 0.4331 inch cutting diameter and a 0.9843 inch length of cut, this tool handles slotting, profiling, and peripheral milling operations across a broad range of materials. The two-flute geometry promotes efficient chip evacuation, particularly in aluminum, non-ferrous metals, and softer steels. A 30-degree helix angle reduces cutting forces and produces a smooth finish. Manufactured from micrograin solid carbide, the 402-4331 delivers consistent dimensional accuracy and long tool life under typical CNC milling conditions.\u003c\/p\u003e\u003cp\u003eThis end mill is suited for use in vertical machining centers, CNC knee mills, and manual milling machines where a standard-length, center-cutting tool is required. The right-hand cut and right-hand spiral flute configuration matches the standard spindle rotation of most milling setups. Its uncoated finish makes it a practical choice for applications where re-sharpening is anticipated or where coolant is used to manage heat. Machinists, tool and die makers, and CNC operators working in job shops, aerospace component shops, and general precision machining environments will find this tool well suited to everyday material removal tasks.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid micrograin carbide construction for extended wear resistance and edge retention\u003c\/li\u003e\n\u003cli\u003e0.4331 inch (11.00 mm) cutting diameter with 0.9843 inch (25.00 mm) length of cut\u003c\/li\u003e\n\u003cli\u003eTwo-flute design promotes chip clearance in slotting and pocketing operations\u003c\/li\u003e\n\u003cli\u003e30-degree helix angle reduces cutting forces and improves surface finish\u003c\/li\u003e\n\u003cli\u003eCenter-cutting capable — allows direct plunge entry into workpiece material\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, right-hand flute, spiral flute geometry for standard spindle compatibility\u003c\/li\u003e\n\u003cli\u003eUncoated finish suitable for re-sharpening or coolant-assisted machining\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and standard tooling option within the OSG Series 402 product family. Suitable for use in any milling machine spindle accepting an 11.00 mm shank diameter toolholder.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or CNC operator following the machine tool manufacturer's toolholding procedures. Ensure the spindle is fully stopped and the machine is in a safe state before changing tooling. Secure the shank in a collet or end mill holder to the appropriate clamping torque specified by the toolholder manufacturer. Verify runout with a dial indicator before initiating 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\u003eMill Diameter\u003c\/strong\u003e: 0.4331 inches (11.00 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.9843 inches (25.00 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 70.00 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 11.00 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\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\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Micrograin\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\u003eExtended Reach\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Helix\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: 402\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.15 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: 402-4331\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51737059754290,"sku":"402-4331","price":76.73,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ed8e2c8c2912382e9c2e7752862a1cd8.jpg?v=1788783739","url":"https:\/\/voomisupply.com\/products\/osg-402-4331-square-end-mill-0-4331-in-2-flute-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}