{"product_id":"accupro-314670-corner-radius-end-mill-5-16-in-3-flute","title":"Accupro 314670 Corner Radius End Mill 5\/16 in 3 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 314670 is a solid carbide corner radius end mill designed for precision milling operations in ferrous and non-ferrous materials. Measuring 5\/16 inches in diameter with a 13\/16 inch length of cut and 2-1\/2 inch overall length, this single-end mill features a ZrN (zirconium nitride) coating that extends tool life and reduces built-up edge in high-speed cutting applications. The 3-flute, right-hand spiral configuration with a 37-degree helix angle promotes efficient chip evacuation and smooth surface finishes. Centercutting capability allows direct plunge entry without a pilot hole. This tool is intended for use by machinists and tool-and-die professionals working on CNC milling machines and manual mills.\u003c\/p\u003e\u003cp\u003eThe 314670 is suited for finish milling, profiling, and contouring operations where a controlled corner radius is required to reduce stress concentrations in the workpiece. The 0.060 inch corner radius blends floor-to-wall transitions cleanly, making this end mill a practical choice for die and mold work, fixture components, and precision part features. Its micrograin carbide substrate maintains edge integrity at elevated feeds and speeds. The regular-length geometry fits standard toolholders without extended-reach adapters in most setups.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eZrN coating reduces friction and extends tool life in ferrous and non-ferrous applications\u003c\/li\u003e\n\u003cli\u003eMicrograin solid carbide substrate for edge rigidity and wear resistance\u003c\/li\u003e\n\u003cli\u003e0.060 inch corner radius blends floor-to-wall transitions and reduces stress risers\u003c\/li\u003e\n\u003cli\u003e3-flute, 37-degree right-hand helix promotes chip evacuation and smooth finishes\u003c\/li\u003e\n\u003cli\u003eCentercutting design allows direct plunge milling without a pre-drilled hole\u003c\/li\u003e\n\u003cli\u003e5\/16 inch shank diameter matches standard collet and end mill holder sizes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-use solid carbide corner radius end mill for CNC and manual milling applications requiring a 5\/16 inch diameter, 3-flute, ZrN-coated tool with a 0.060 inch corner radius.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist following shop safety procedures. Secure the shank fully within the collet or end mill holder to the manufacturer-recommended grip depth before tightening. Verify spindle speed and feed rate settings against the material being cut and the tool manufacturer specifications before engaging the cut. Inspect the cutting edges and coating for damage before each use and replace the tool if chipping or excessive wear is observed.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\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\u003eShank Diameter\u003c\/strong\u003e: 5\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 13\/16 inches (0.8125 inches)\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\u003eCorner Radius\u003c\/strong\u003e: 0.060 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 37 degrees\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: ZrN (Zirconium Nitride)\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\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\u003eCentercutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle or Double End\u003c\/strong\u003e: Single\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Helix\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Reach\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: +0.000000 \/ -0.002000 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: +0.0001 \/ -0.0004 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Weight\u003c\/strong\u003e: 0.5 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: 314670\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51739121582386,"sku":"314670","price":78.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/3f4ca989eb8c0e81a8914b47e69f737d.jpg?v=1788809787","url":"https:\/\/voomisupply.com\/products\/accupro-314670-corner-radius-end-mill-5-16-in-3-flute","provider":"Voomi Supply","version":"1.0","type":"link"}