{"product_id":"accupro-12181917-corner-radius-end-mill-3-16-in-3-flute","title":"Accupro 12181917 Corner Radius End Mill 3\/16 in 3 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ACCUPRO 12181917 is a solid carbide corner radius end mill designed for precision milling operations in metal cutting and machining applications. With a 3\/16 inch (0.1875 inch) mill diameter and a 0.0200 inch corner radius, this tool produces smooth, radiused transitions at the base of milled features, reducing stress concentrations and improving part finish. The 3-flute, right-hand spiral geometry provides efficient chip evacuation while maintaining rigidity in the cut. It is a single-end, centercutting tool, meaning it can plunge directly into the workpiece. Machinists and toolroom professionals in CNC and manual milling environments install and use this tool.\u003c\/p\u003e\n\u003cp\u003eThis end mill is suited for finish milling, profiling, and contouring operations in ferrous and non-ferrous metals where a small corner radius is required on the finished feature. The bright\/uncoated finish makes it a straightforward choice for general-purpose machining where coating is not required or where regrinding is anticipated. The 5\/8 inch length of cut (LOC) and 2 inch overall length (OAL) fit standard short-reach milling scenarios in production and job shop environments. The 3\/16 inch shank diameter matches the mill diameter for direct collet or end mill holder mounting.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e3\/16 inch (0.1875 inch) mill diameter with matching 3\/16 inch shank for direct holder fitment\u003c\/li\u003e\n  \u003cli\u003e0.0200 inch corner radius for precise radiused edge generation on milled features\u003c\/li\u003e\n  \u003cli\u003e3-flute right-hand spiral geometry for balanced chip evacuation and rigidity\u003c\/li\u003e\n  \u003cli\u003eCentercutting design allows direct plunge entry without pre-drilling\u003c\/li\u003e\n  \u003cli\u003eMicrograin solid carbide construction for wear resistance and dimensional stability\u003c\/li\u003e\n  \u003cli\u003eBright\/uncoated finish suitable for general-purpose machining and regrind applications\u003c\/li\u003e\n  \u003cli\u003e40-degree helix angle promotes smooth cutting action and reduced chatter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct tooling selection for standard 3\/16 inch collets, end mill holders, and shrink-fit holders used in CNC machining centers and manual knee mills.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by qualified machinists or toolroom personnel. Ensure the spindle is fully powered down and the machine is in a safe lockout\/tagout state before changing tooling. Seat the shank fully and evenly in the collet or holder to the recommended grip length before torquing the retention nut. Verify runout with a dial indicator after mounting to confirm proper seating before beginning any cut.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 3\/16 inch (0.1875 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: +0.000000 to -0.002500 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0200 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius Tolerance\u003c\/strong\u003e: 0.00150 inch\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 (LOC)\u003c\/strong\u003e: 5\/8 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length (OAL)\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/16 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: -0.0001 to -0.0004 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 40 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: Bright\/Uncoated\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 End\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\u003eVariable Index\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.03 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: 12181917\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51747502719282,"sku":"12181917","price":33.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f7c9ed1a3b68e7907dc4abefdb6b018a.jpg?v=1788881456","url":"https:\/\/voomisupply.com\/products\/accupro-12181917-corner-radius-end-mill-3-16-in-3-flute","provider":"Voomi Supply","version":"1.0","type":"link"}