{"product_id":"accupro-12178716-corner-radius-end-mill-3-8-in-7-flute","title":"Accupro 12178716 Corner Radius End Mill 3\/8 in 7 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ACCUPRO 12178716 is a solid carbide corner radius end mill designed for high-performance milling operations in demanding machining environments. Built from micrograin solid carbide and coated with AlTiN (aluminum titanium nitride), this tool delivers excellent hardness and heat resistance at elevated cutting speeds. The 7-flute geometry provides a high chip load capacity and superior surface finish on ferrous and hard materials. At 3\/8 inches in diameter with a 0.03 inch corner radius, it is well suited for finishing passes and light profiling where edge integrity and dimensional consistency are critical. Licensed machinists and CNC operators install and apply this tool in production and job shop settings.\u003c\/p\u003e\n\u003cp\u003eThis end mill is designed for use in vertical and horizontal CNC machining centers as well as manual milling machines capable of holding tight runout tolerances. The single-end, centercutting configuration allows for plunge entry and full slot milling in addition to peripheral profiling. The right-hand flute direction and right-hand cutting orientation are standard for conventional and climb milling on modern CNC equipment. Typical applications include finishing hardened steels, stainless alloys, and titanium where the AlTiN coating provides thermal stability and extended tool life.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eMicrograin solid carbide substrate for rigidity and wear resistance in hard materials\u003c\/li\u003e\n  \u003cli\u003eAlTiN coating provides high-temperature oxidation resistance and extended tool life\u003c\/li\u003e\n  \u003cli\u003e7-flute design increases chip load per revolution for improved surface finish and productivity\u003c\/li\u003e\n  \u003cli\u003e0.03 inch corner radius reduces stress concentration and protects the cutting edge at the corner\u003c\/li\u003e\n  \u003cli\u003eVariable index flute spacing reduces harmonic vibration during aggressive cuts\u003c\/li\u003e\n  \u003cli\u003eCentercutting geometry permits direct plunge entry without a pre-drilled pilot hole\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-use tool for CNC machining centers and manual mills with a 3\/8 inch collet, end mill holder, or shrink-fit tooling system.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and operation of this end mill should be performed by a qualified machinist or CNC programmer. Ensure the spindle and toolholder are clean and free of debris before seating the shank to the full recommended engagement depth. Verify runout at the cutting edge before initiating a program, as excessive runout accelerates wear on 7-flute geometry. Follow the tool manufacturer feed-and-speed recommendations for the workpiece material and adhere to applicable shop safety standards during tool changes.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.375 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\u003eLength of Cut (LOC)\u003c\/strong\u003e: 7\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length (OAL)\u003c\/strong\u003e: 2-1\/2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0300 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius Tolerance\u003c\/strong\u003e: plus or minus 0.00150 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: +0.000000 \/ -0.002500 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: -0.0001 \/ -0.0004 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 7\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 37 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\u003eVariable Index\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: Solid Carbide (Micrograin)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: AlTiN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.144 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 3.25 inches x 0.63 inches x 0.63 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: 12178716\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51727813804338,"sku":"12178716","price":114.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6926aca9de6f8d00683d53c91af9e391.jpg?v=1788682860","url":"https:\/\/voomisupply.com\/products\/accupro-12178716-corner-radius-end-mill-3-8-in-7-flute","provider":"Voomi Supply","version":"1.0","type":"link"}