{"product_id":"accupro-12183067-corner-radius-end-mill-3-8-in-4-flute-altin","title":"Accupro 12183067 Corner Radius End Mill 3\/8 in 4 Flute Altin","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 12183067 is a solid carbide corner radius end mill designed for precision milling operations in ferrous and hard materials. It features a 3\/8 inch mill diameter, a 1-1\/8 inch length of cut, and a 0.01 inch corner radius that reduces stress concentration at the cutting edge and extends tool life in demanding applications. The AlTiN coating improves heat resistance and wear performance at elevated cutting temperatures. With 4 right-hand spiral flutes and a 40-degree helix angle, this tool is built for efficient chip evacuation and smooth surface finishes. It is installed and operated by machinists and CNC programmers working in job shops, production machining, and toolroom environments.\u003c\/p\u003e\u003cp\u003eThis end mill is suited for milling slots, pockets, and contours in ferrous alloys, hardened steels, stainless steel, and similar materials where corner strength and surface finish are critical. The single-end, centercutting design allows plunge entry and full slot milling. The long flute length and 3 inch overall length accommodate deeper reach applications without requiring extended-reach tooling in many setups. Typical use cases include die and mold work, aerospace component machining, and general CNC production runs.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e0.01 inch corner radius reduces edge chipping and improves workpiece corner integrity\u003c\/li\u003e\n\u003cli\u003eAlTiN coating provides high heat resistance for dry and high-speed cutting in ferrous materials\u003c\/li\u003e\n\u003cli\u003e4 right-hand spiral flutes with 40-degree helix for efficient chip evacuation and surface finish\u003c\/li\u003e\n\u003cli\u003eCentercutting design enables plunge milling and full slot entry\u003c\/li\u003e\n\u003cli\u003eMicrograin solid carbide substrate delivers rigidity and edge retention\u003c\/li\u003e\n\u003cli\u003eSingle-end configuration with 3\/8 inch shank fits standard ER and set-screw toolholders\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or standard toolroom end mill compatible with any CNC machining center or manual mill equipped with a 3\/8 inch tool holding system.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation requires a 3\/8 inch collet, ER chuck, or set-screw holder rated for the intended spindle RPM and feed load. Ensure the tool is fully seated to the recommended gauge length before torquing the holder. Inspect the collet or chuck for runout before starting a new program, as excessive runout accelerates edge wear on carbide tooling. Follow machine manufacturer guidelines and applicable shop safety procedures when setting or changing rotating cutting tools.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 3\/8 inches (0.3750 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 1-1\/8 inches (1.5000 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.01 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius Tolerance\u003c\/strong\u003e: plus or minus 0.00150 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: +0.000000 to -0.002500 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: -0.0001 to -0.0004 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: 40 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Corner Radius\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Long\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Configuration\u003c\/strong\u003e: Single End\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentercutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Solid Carbide, Micrograin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: AlTiN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.16 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: ACCUPRO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 12183067\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51736405442866,"sku":"12183067","price":86.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c521fed7a17c355fdbe3772637391b75.jpg?v=1788777772","url":"https:\/\/voomisupply.com\/products\/accupro-12183067-corner-radius-end-mill-3-8-in-4-flute-altin","provider":"Voomi Supply","version":"1.0","type":"link"}