{"product_id":"accupro-310176-corner-radius-end-mill-5-16-in-4-flute-carbide","title":"Accupro 310176 Corner Radius End Mill 5\/16 in 4-flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 310176 is a solid carbide corner radius end mill designed for precision milling operations in demanding machining environments. With a 5\/16 inch (0.3125 inch) mill diameter and a 0.0200 inch corner radius, this tool produces accurate, radiused corners that reduce stress concentrations and extend workpiece life. The four-flute, right-hand spiral configuration combined with an AlCrTiN coating delivers strong heat resistance and wear performance at elevated cutting speeds. A 38-degree variable index helix helps reduce chatter and improves chip evacuation. Machinists and toolroom operators in production shops install this tool for finishing and semi-finishing passes on ferrous and hardened materials.\u003c\/p\u003e\u003cp\u003eThis end mill suits single-end milling applications in CNC machining centers and manual knee mills where accurate corner radii and clean sidewall finishes are required. The centercutting geometry allows plunge entry, adding versatility for slotting, profiling, and ramping operations. It is particularly well-suited for die and mold work, aerospace components, and general precision machining where tight tolerances must be maintained over extended run times. The micrograin solid carbide substrate supports rigidity in applications with minimal tool overhang.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAlCrTiN coating provides high-temperature hardness and oxidation resistance for extended tool life\u003c\/li\u003e\n\u003cli\u003eMicrograin solid carbide substrate delivers rigidity and edge retention\u003c\/li\u003e\n\u003cli\u003e0.0200 inch corner radius reduces stress risers on finished workpiece edges\u003c\/li\u003e\n\u003cli\u003eVariable index flute spacing reduces harmonic chatter during cutting\u003c\/li\u003e\n\u003cli\u003eCentercutting design supports plunge milling, ramping, and slotting operations\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, right-hand spiral geometry suits standard CNC spindle rotation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and standard-production corner radius end mill for CNC machining centers and manual mills accepting a 5\/16 inch straight shank toolholder.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or toolroom technician. Secure the shank fully into a collet or end mill holder to the recommended grip depth before tightening to avoid runout. Inspect the collet bore and toolholder taper for chips or wear before seating the tool. Follow machine manufacturer guidelines and applicable shop safety procedures when setting tool offsets and initiating first cuts.\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\u003eNumber of Flutes\u003c\/strong\u003e: 4\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: 2.5 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\u003eCorner Radius\u003c\/strong\u003e: 0.0200 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 38 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: AlCrTiN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Corner Radius\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 Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Index\u003c\/strong\u003e: Yes\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\u003eSeries\u003c\/strong\u003e: HS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.03 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: 310176\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51755754094898,"sku":"310176","price":77.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/416be3be78d6663d5ce09f19074ce3c6_c12b3692-6528-4923-b9e2-ef4cf4446ad8.jpg?v=1788959186","url":"https:\/\/voomisupply.com\/products\/accupro-310176-corner-radius-end-mill-5-16-in-4-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}