{"product_id":"accupro-310927-corner-radius-end-mill-1-2-in-4-flute","title":"Accupro 310927 Corner Radius End Mill 1\/2 in 4 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 310927 is a single-end, corner radius end mill designed for precision milling operations in metal-cutting environments. Built from micrograin solid carbide and coated with AlCrTiN for heat and wear resistance, this tool is suited for high-speed cutting of hardened steels, stainless, and other difficult-to-machine alloys. It carries a 1\/2-inch diameter with a 5\/8-inch length of cut, a 0.030-inch corner radius, and a 38-degree helix angle. The 6-inch overall length combined with a 4-1\/8-inch reach length and a reduced neck diameter of 0.475 inches makes it capable of accessing deep cavities where standard-reach tools cannot reach. Machining centers with right-hand spindle direction are the intended platform.\u003c\/p\u003e\u003cp\u003eThis end mill is applicable in both production shop and job-shop settings where extended reach and corner radius geometry are required. Typical use cases include deep-pocket milling, rib machining, and contour work where a square corner would cause chipping or stress concentration. The centercutting geometry allows plunge entry directly into the workpiece. The variable index flute spacing helps reduce chatter during long-reach cuts, making this tool well suited for aerospace, mold-and-die, and precision machining applications.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAlCrTiN coating provides elevated heat resistance and extended tool life in ferrous and hardened materials\u003c\/li\u003e\n\u003cli\u003eMicrograin solid carbide substrate for rigidity and wear resistance\u003c\/li\u003e\n\u003cli\u003e0.030-inch corner radius reduces stress concentration and extends edge life at workpiece corners\u003c\/li\u003e\n\u003cli\u003eExtended reach of 4-1\/8 inches with reduced neck diameter of 0.475 inches for deep-cavity access\u003c\/li\u003e\n\u003cli\u003eCentercutting design allows direct plunge milling without a pilot hole\u003c\/li\u003e\n\u003cli\u003eVariable index flute geometry reduces harmonic vibration during long-reach operations\u003c\/li\u003e\n\u003cli\u003e4-flute, right-hand spiral configuration balances chip evacuation with surface finish quality\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in standard 1\/2-inch tool holders on CNC machining centers with right-hand spindle rotation. Intended for single-end use in extended-reach milling applications on ferrous metals, hardened steels, and similar difficult-to-machine materials.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist following shop tooling procedures. Ensure the tool holder is clean and free of debris before seating the 1\/2-inch shank to the recommended gauge-line depth. Confirm runout with a dial indicator before production cuts, as extended-reach tools are sensitive to spindle and holder concentricity. Power down and lock out the spindle before any tool change operation.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.500 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.500 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeck Diameter\u003c\/strong\u003e: 0.475 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.625 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReach Length\u003c\/strong\u003e: 4.125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6.000 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.030 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: 38 degrees\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\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\u003eSingle or Double End\u003c\/strong\u003e: Single\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\u003c\/strong\u003e: AlCrTiN\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: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Index\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Helix\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChipbreaker\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.07 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: 310927\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51734290399538,"sku":"310927","price":238.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ad6595cb5ee3be58fcbabc762ecb9c1f.jpg?v=1788762404","url":"https:\/\/voomisupply.com\/products\/accupro-310927-corner-radius-end-mill-1-2-in-4-flute","provider":"Voomi Supply","version":"1.0","type":"link"}