{"product_id":"accupro-12181416-corner-radius-end-mill-3-8-in-2-flute","title":"Accupro 12181416 Corner Radius End Mill 3\/8 in 2 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ACCUPRO 12181416 is a single-end corner radius end mill designed for precision milling in ferrous and non-ferrous materials. Built from micrograin solid carbide and coated with TiCN, it delivers extended tool life in demanding cutting environments. The 0.015-inch corner radius reduces stress concentration at the cutting edge, making it suitable for finishing and semi-finishing passes where sharp corners are not acceptable. With a 40-degree helix angle and 2 right-hand spiral flutes, it evacuates chips efficiently and maintains surface finish quality. Licensed machinists and CNC operators are the primary users of this tooling.\u003c\/p\u003e\n\u003cp\u003eThis end mill is sized for use in CNC machining centers and manual mills equipped with 3\/8-inch collets or end mill holders. With a 3\/8-inch diameter, 7\/8-inch length of cut, and 2-1\/2-inch overall length, it is well suited for pocket milling, profiling, and slot cutting operations in tool rooms, job shops, and production environments. The centercutting design allows plunge entry where required. Right-hand cutting direction is standard for conventional milling machine spindle rotation.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eMicrograin solid carbide construction for wear resistance and dimensional stability\u003c\/li\u003e\n  \u003cli\u003eTiCN coating extends tool life in abrasive and hard materials\u003c\/li\u003e\n  \u003cli\u003e0.015-inch corner radius reduces edge chipping and improves part surface finish\u003c\/li\u003e\n  \u003cli\u003e40-degree helix angle promotes efficient chip evacuation and reduced cutting forces\u003c\/li\u003e\n  \u003cli\u003eCentercutting geometry allows direct plunge milling without a pre-drilled hole\u003c\/li\u003e\n  \u003cli\u003eSingle-end design with right-hand flute direction and right-hand cutting direction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in 3\/8-inch collet chucks, shrink-fit holders, and end mill holders on CNC machining centers and manual vertical mills. Compatible with standard 3\/8-inch toolholding systems.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist or CNC operator. Ensure the machine spindle is fully stopped and the machine is in a safe state before changing tooling. Seat the shank fully into the holder to the recommended engagement depth and torque the collet nut or set screw to the toolholder manufacturer specifications. Verify runout with a dial indicator before production cutting to confirm proper seating.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 3\/8 inches (0.3750 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 7\/8 inches (0.8750 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\u003eShank Diameter\u003c\/strong\u003e: 3\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0150 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\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\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 40 degrees\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\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\u003eExtended Reach\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Micrograin Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiCN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.3 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: 12181416\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51744005685554,"sku":"12181416","price":76.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/fbd56335da5c20877cc9dee9349fe2f2.jpg?v=1788852775","url":"https:\/\/voomisupply.com\/products\/accupro-12181416-corner-radius-end-mill-3-8-in-2-flute","provider":"Voomi Supply","version":"1.0","type":"link"}