{"product_id":"accupro-12179634-corner-radius-end-mill-5-16-in-3-flute-carbide","title":"Accupro 12179634 Corner Radius End Mill 5\/16 in 3 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ACCUPRO 12179634 is a solid carbide corner radius end mill designed for precision milling in metal and composite materials. It features a 5\/16-inch cutting diameter and a 0.045-inch corner radius that blends the side wall and floor of a pocket or slot, reducing stress concentrations and extending tool life. With 3 flutes and a 30-degree helix angle, it delivers efficient chip evacuation and a smooth surface finish. A ZrN (zirconium nitride) coating adds hardness and heat resistance, making it suitable for higher-speed dry or near-dry cutting applications. Licensed machinists and CNC operators install this tool type on vertical machining centers and manual mills.\u003c\/p\u003e\n\u003cp\u003eThis end mill is suited for light to medium roughing and finishing passes in ferrous and non-ferrous materials. The stub-length configuration keeps overhang short, improving rigidity and reducing chatter during tight-tolerance work. Its centercutting geometry allows plunge milling into a workpiece without a pre-drilled entry hole. Typical applications include mold and die work, fixture machining, and general-purpose CNC production where a radiused corner profile is required to meet part drawings or reduce corner cracking in hardened materials.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e0.045-inch corner radius blends wall-to-floor transitions for reduced stress and improved part finish\u003c\/li\u003e\n  \u003cli\u003eSolid carbide construction provides rigidity and wear resistance over high-speed steel alternatives\u003c\/li\u003e\n  \u003cli\u003eZrN coating increases surface hardness and thermal resistance for higher cutting speeds\u003c\/li\u003e\n  \u003cli\u003e3-flute, right-hand cut and right-hand flute geometry with 30-degree helix for efficient chip evacuation\u003c\/li\u003e\n  \u003cli\u003eCentercutting design supports direct plunge entry without a pilot hole\u003c\/li\u003e\n  \u003cli\u003eStub length (1\/2-inch LOC) minimizes deflection in tight setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard-shank replacement end mill for CNC machining centers and manual mills accepting a 5\/16-inch collet or end mill holder.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a machinist or CNC operator. Power down and lock out the spindle before loading or removing the tool from the holder. Seat the shank fully into the collet or set-screw holder and torque the retention hardware to the tool holder manufacturer's specification. Verify runout with a dial indicator before beginning the cut, as excessive runout accelerates corner-radius wear and reduces dimensional accuracy.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 5\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut (LOC)\u003c\/strong\u003e: 1\/2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.045 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length (OAL)\u003c\/strong\u003e: 2 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\u003eHelix Angle\u003c\/strong\u003e: 30 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: ZrN (Zirconium Nitride)\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\u003ePitch\u003c\/strong\u003e: Coarse\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Stub\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCentercutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExtended Reach\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.08 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: 12179634\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51748527866162,"sku":"12179634","price":78.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9327bf8e147570b77ab780c20e2a01af.jpg?v=1788894844","url":"https:\/\/voomisupply.com\/products\/accupro-12179634-corner-radius-end-mill-5-16-in-3-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}