{"product_id":"osg-402-2031-square-end-mill-13-64-in-2-flute-carbide","title":"Osg 402-2031 Square End Mill 13\/64 in 2 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 402-2031 is a solid carbide square end mill designed for precision milling operations in metal, composite, and engineering-plastic workpieces. With a 13\/64 inch (0.2031 inch) cutting diameter and a 2-flute spiral geometry at a 30-degree helix angle, this tool delivers efficient chip evacuation and clean square-shoulder cuts. It is centercutting, allowing plunge entry in addition to peripheral and slot milling. The 1\/4 inch shank diameter makes it compatible with standard collet chucks and toolholders on CNC machining centers and manual mills. Micrograin carbide construction provides wear resistance and rigidity at small diameters where tool deflection is a primary concern.\u003c\/p\u003e\u003cp\u003eThis end mill is suited for light-to-medium material removal passes in ferrous and non-ferrous metals, plastics, and composites. The uncoated finish and right-hand cut with right-hand flute configuration make it a straightforward choice for general-purpose machining where coolant or cutting fluid is used to manage heat. The regular-length body and 5\/8 inch length of cut keep the tool stiff, which is important when working at this diameter. Machinists, tool-and-die shops, and CNC job shops running prototype or production runs will find this tool appropriate for contour, slot, and profile milling operations.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e13\/64 inch (0.2031 inch) cutting diameter with 5\/8 inch length of cut\u003c\/li\u003e\n\u003cli\u003eSolid micrograin carbide construction for rigidity and wear resistance at small diameters\u003c\/li\u003e\n\u003cli\u003e2-flute spiral design with 30-degree helix angle for efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eCentercutting geometry allows plunge milling in addition to peripheral cuts\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, right-hand flute configuration — standard orientation for most setups\u003c\/li\u003e\n\u003cli\u003eUncoated finish suitable for use with coolant or cutting fluid\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style general-purpose square end mill compatible with standard 1\/4 inch collet chucks, ER collets, and side-lock toolholders on CNC machining centers and manual milling machines.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist following shop safety protocols. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Seat the 1\/4 inch shank fully into the collet or toolholder and tighten to the toolholder manufacturer's specified clamping torque using the appropriate wrench. Verify runout with a dial indicator before starting a cut, as excessive runout at this diameter will accelerate tool wear and compromise surface finish.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 13\/64 inch (0.2031 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 5\/8 inch (0.6250 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1\/4 inch (0.2500 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2-1\/2 inches\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 (Micrograin)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentercutting\u003c\/strong\u003e: Yes\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: 0.05 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: 402-2031\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51746078425394,"sku":"402-2031","price":41.86,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/deb9d331373e9c5bb3c7824a454fae90.jpg?v=1788866450","url":"https:\/\/voomisupply.com\/products\/osg-402-2031-square-end-mill-13-64-in-2-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}