{"product_id":"accupro-314978-corner-radius-end-mill-3-4-in-solid-carbide","title":"Accupro 314978 Corner Radius End Mill 3\/4 in Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 314978 is a solid carbide corner radius end mill designed for precision milling operations in metal and hard-material applications. Built from micrograin solid carbide and coated with ZrN (zirconium nitride) for extended tool life, this end mill features a 3\/4-inch diameter, a 1-inch length of cut, and a 4-inch overall length. The 37-degree helix angle and three-flute configuration promote efficient chip evacuation and smooth cutting action. Center-cutting capability allows plunge entry directly into the workpiece. It is intended for use by machinists and CNC operators working in job shop, production, and toolroom environments.\u003c\/p\u003e\u003cp\u003eThis end mill is suited for contouring, profiling, and finishing passes in ferrous and non-ferrous materials where a controlled corner radius is required at the base of a feature. The 0.090-inch corner radius reduces stress concentration at sharp corners and helps maintain part geometry in mold and die work, aerospace components, and precision machined parts. The right-hand flute direction and right-hand cutting orientation are standard for conventional CNC milling setups. Single-end construction with a 3\/4-inch shank diameter provides rigid tool holding in standard end mill holders and collet chucks.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMicrograin solid carbide substrate for hardness and wear resistance\u003c\/li\u003e\n\u003cli\u003eZrN coating extends tool life and reduces built-up edge in steel and stainless applications\u003c\/li\u003e\n\u003cli\u003e0.090-inch corner radius for controlled blending at feature bases\u003c\/li\u003e\n\u003cli\u003e37-degree helix angle promotes smooth cutting and efficient chip flow\u003c\/li\u003e\n\u003cli\u003eCenter-cutting design enables direct plunge milling without a pre-drilled entry hole\u003c\/li\u003e\n\u003cli\u003e3-flute geometry balances chip clearance and surface finish performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style solid carbide corner radius end mill for use in standard 3\/4-inch end mill holders, collet chucks, and shrink-fit tooling systems compatible with right-hand cutting tools.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and tool changes should be performed by a qualified machinist with the spindle fully stopped and machine power locked out per shop safety procedures. Ensure the tool holder bore and shank are clean and free of chips before seating the end mill. Proper runout should be verified with a dial indicator before beginning a production cut. Follow machine tool manufacturer guidelines and applicable OSHA standards for tooling setup and speeds and feeds selection.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.750 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 1.000 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4.000 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.090 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 37 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\/Finish\u003c\/strong\u003e: ZrN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Corner Radius\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\u003eCentercutting\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\u003eExtended Reach\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle or Double End\u003c\/strong\u003e: Single\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: +0.000000 \/ -0.002000 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\u003eWeight\u003c\/strong\u003e: 0.75 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: 314978\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51733419622706,"sku":"314978","price":235.23,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/450ec09bbdf434408ba164a0848b5aa6.jpg?v=1788755401","url":"https:\/\/voomisupply.com\/products\/accupro-314978-corner-radius-end-mill-3-4-in-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}