{"product_id":"accupro-313847-corner-radius-end-mill-1-4-in-solid-carbide","title":"Accupro 313847 Corner Radius End Mill 1\/4 in Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 313847 is a solid carbide corner radius end mill designed for precision milling in demanding machining environments. It features a 1\/4 inch mill diameter, a 3\/4 inch length of cut, and a 4 inch overall length with an extended reach configuration. The cutting edge carries a 0.015 inch corner radius that reduces stress concentrations at part corners and extends tool life. A ZrN (zirconium nitride) coating improves wear resistance and lubricity, making this end mill well suited for ferrous and non-ferrous materials. Two right-hand spiral flutes provide efficient chip evacuation, and the centercutting geometry allows plunge entry directly into a workpiece.\u003c\/p\u003e\u003cp\u003eThis end mill is intended for use in CNC machining centers and manual milling machines where extended reach is required. The 2-1\/8 inch reach length and 0.225 inch neck diameter allow access into deep pockets, slots, and contoured features without interference from the shank. The stub-length-of-cut profile combined with the extended reach makes it a practical choice for aerospace, mold and die, and general precision machining applications. It is a single-end tool sold individually.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eZrN coating improves wear resistance and reduces built-up edge on a wide range of workpiece materials\u003c\/li\u003e\n\u003cli\u003e0.015 inch corner radius reduces stress risers and chip-out at milled corners\u003c\/li\u003e\n\u003cli\u003eExtended reach design with 2-1\/8 inch reach length for deep-pocket and cavity work\u003c\/li\u003e\n\u003cli\u003eCentercutting geometry allows direct plunge milling without a pre-drilled entry hole\u003c\/li\u003e\n\u003cli\u003eMicrograin solid carbide construction provides rigidity and edge retention at high feeds and speeds\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, right-hand flute spiral promotes consistent chip flow away from the cutting zone\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard 1\/4 inch shank end mill compatible with ER collet systems, end mill holders, and other toolholders accepting a 1\/4 inch straight shank. No specific machine or system compatibility data was provided by the manufacturer for this part number.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist following shop-standard toolholding procedures. Ensure the machine spindle is fully stopped and locked out before inserting or removing the tool. Seat the shank to the minimum recommended engagement depth for the holder type in use to prevent pullout under cutting loads. Verify runout with a dial indicator after tool installation before beginning a cut, as excessive runout accelerates wear on a fine-geometry tool like this one.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.250 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.750 inches\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: 1\/4 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeck Diameter\u003c\/strong\u003e: 0.225 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReach Length\u003c\/strong\u003e: 2.125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.015 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: 45 degrees\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\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\u003eLength Type\u003c\/strong\u003e: Stub\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Reach\u003c\/strong\u003e: Yes\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: ZrN (Zirconium Nitride)\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\u003eSingle or Double End\u003c\/strong\u003e: Single\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.5 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: 313847\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51734930194738,"sku":"313847","price":145.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c8a1f89454f2fa490c4477272cc242f6.jpg?v=1788768279","url":"https:\/\/voomisupply.com\/products\/accupro-313847-corner-radius-end-mill-1-4-in-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}