{"product_id":"accupro-12183667-corner-radius-end-mill-5-16-in-4-flute","title":"Accupro 12183667 Corner Radius End Mill 5\/16 in 4 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ACCUPRO 12183667 is a solid carbide corner radius end mill designed for precision milling operations in metalworking and machining environments. It features a 5\/16-inch diameter with a 0.06-inch corner radius, delivering controlled edge geometry that reduces stress concentration and extends tool life on contoured cuts. The 4-flute, right-hand spiral configuration supports efficient chip evacuation and stable cutting at higher feed rates. With a 1-1\/2-inch length of cut and a 6-inch overall length, this is an extra-long reach tool suited for deep-cavity and extended-reach applications. It is installed and operated by machinists and CNC programmers working in job shops, tool rooms, and production machining cells.\u003c\/p\u003e\n\u003cp\u003eThis end mill is suited for milling steel, stainless steel, aluminum, and similar materials where a radiused corner profile is required. The centercutting design allows plunge entry, making it versatile for slotting, profiling, and pocket milling. The extra-long overall length of 6 inches makes it appropriate for setups where standard-length tooling cannot reach the workpiece. The bright uncoated finish is typical for general-purpose applications and regrinding after wear. This tool is sold individually and is a direct fit for standard 5\/16-inch collets and tool holders.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid micrograin carbide construction for rigidity and wear resistance\u003c\/li\u003e\n  \u003cli\u003e0.06-inch corner radius reduces edge chipping on profiled cuts\u003c\/li\u003e\n  \u003cli\u003e4-flute, right-hand spiral design for efficient chip evacuation\u003c\/li\u003e\n  \u003cli\u003eCentercutting capable — supports plunge entry without a pre-drilled pilot\u003c\/li\u003e\n  \u003cli\u003eExtra-long 6-inch OAL for extended-reach and deep-cavity milling\u003c\/li\u003e\n  \u003cli\u003eBright uncoated finish suitable for general-purpose machining and regrindability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in standard 5\/16-inch collet chucks, shrink-fit holders, and end mill adapters on CNC machining centers and manual mills requiring a corner radius end mill with extra-long reach.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a machinist or CNC operator. Ensure the machine spindle is fully stopped and the tool holder is clean and free of debris before seating the shank. The shank diameter tolerance is -0.0001 to -0.0004 inches, so verify collet or holder fit before tightening. Follow the machine tool manufacturer guidelines and applicable shop safety procedures for tool runout, clamping force, and spindle speed when setting up extra-long reach tooling.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 5\/16 inches (0.3125 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.06 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius Tolerance\u003c\/strong\u003e: 0.0015 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 1-1\/2 inches (1.25 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 5\/16 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\u003eMill Diameter Tolerance\u003c\/strong\u003e: +0.000000 to -0.0025 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 40 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\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\u003eSingle or Double End\u003c\/strong\u003e: Single\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCentercutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Extra Long\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\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.24 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\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: 12183667\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51727283945778,"sku":"12183667","price":100.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/218e1cd14efe8a7fc6a0e1eb8bcb7053.jpg?v=1788675875","url":"https:\/\/voomisupply.com\/products\/accupro-12183667-corner-radius-end-mill-5-16-in-4-flute","provider":"Voomi Supply","version":"1.0","type":"link"}