{"product_id":"accupro-12183508-corner-radius-end-mill-5-16-in-4-flute-ticn","title":"Accupro 12183508 Corner Radius End Mill 5\/16 in 4 Flute Ticn","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ACCUPRO 12183508 is a solid carbide corner radius end mill designed for precision milling operations where a controlled edge radius and long tool life are required. It carries a 5\/16-inch diameter, a 1-inch length of cut, and a 0.02-inch corner radius that reduces stress concentration at the cutting edge and extends part surface finish quality. The TiCN coating adds hardness and lubricity, making this tool well-suited for ferrous and non-ferrous materials. With four flutes in a right-hand spiral configuration and center-cutting capability, it handles both slotting and ramping passes. This is a long-series end mill with a 4-inch overall length, appropriate for machinists and tool-and-die professionals working on production or prototype work.\u003c\/p\u003e\n\u003cp\u003eThis end mill is used in CNC machining centers and manual mills where a corner radius profile is needed to produce fillets, blend surfaces, or reduce sharp internal corner stress in a workpiece. The single-end, center-cutting design makes it suitable for plunge entries and side milling passes. It is commonly applied in job shops, aerospace component work, mold-and-die applications, and general precision machining where micrograin carbide and TiCN coating provide an advantage over standard high-speed steel tooling. The 5\/16-inch shank fits standard ER collets and end mill holders commonly found in these environments.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eMicrograin solid carbide substrate for wear resistance and dimensional stability\u003c\/li\u003e\n  \u003cli\u003eTiCN coating increases surface hardness and reduces built-up edge in ferrous materials\u003c\/li\u003e\n  \u003cli\u003e0.02-inch corner radius reduces edge chipping and produces consistent fillet geometry\u003c\/li\u003e\n  \u003cli\u003eCenter-cutting design allows direct plunge entry without pre-drilling\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut, right-hand spiral with four flutes for efficient chip evacuation\u003c\/li\u003e\n  \u003cli\u003eLong-series 4-inch OAL for extended reach in deeper pockets or fixtures\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style solid carbide corner radius end mill for use in CNC machining centers and manual knee mills accepting a 5\/16-inch shank via ER collet or end mill holder.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist following standard toolholding procedures. Ensure the spindle is fully stopped and locked out before loading or removing the tool. Seat the shank to the full recommended engagement depth in the collet or holder to prevent pullout under cutting loads. Verify runout with a dial indicator before committing to a finishing pass, particularly given the tight mill diameter tolerance of +0.0000 to -0.0025 inches specified for this tool.\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: 0.0200 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 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4 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\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide (Micrograin)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiCN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand Spiral\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: Long\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExtended Reach\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVariable Index\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: +0.000000 to -0.002500 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\u003eCorner Radius Tolerance\u003c\/strong\u003e: 0.00150 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.16 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: 12183508\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51748518297906,"sku":"12183508","price":85.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/2d5702321fcb73c1d329c3cbaaf21c1a_2a8f303b-ec76-40b8-91a2-3464ea9f6b20.jpg?v=1788894756","url":"https:\/\/voomisupply.com\/products\/accupro-12183508-corner-radius-end-mill-5-16-in-4-flute-ticn","provider":"Voomi Supply","version":"1.0","type":"link"}