{"product_id":"accupro-12176908-corner-radius-end-mill-0-0781in-4-flute","title":"Accupro 12176908 Corner Radius End Mill 0.0781in 4 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ACCUPRO 12176908 is a single-end corner radius end mill manufactured from micrograin solid carbide and coated with AlTiN (aluminum titanium nitride) for extended tool life in demanding cutting applications. The cutter measures 0.0781 inches in diameter with a 0.01-inch corner radius and runs four right-hand spiral flutes at a 30-degree helix angle. Centercutting geometry allows plunge entry. The AlTiN coating provides thermal resistance and hardness, making this end mill well suited for high-speed dry or near-dry machining of ferrous and hardened materials. Licensed machinists and CNC tooling specialists are the primary users.\u003c\/p\u003e\n\u003cp\u003eThis end mill is designed for precision profiling, slotting, and contouring operations in machining centers and CNC mills. The 0.0781-inch diameter and 0.01-inch corner radius make it appropriate for fine-detail work and tight-tolerance features where sharp inside corners must be slightly radiused to reduce stress concentration. A 0.25-inch length of cut and 1.5-inch overall length suit shallow-to-moderate depth passes in ferrous alloys, stainless steel, titanium, and similar difficult-to-machine materials. The 0.125-inch straight shank fits standard ER and collet-style toolholders commonly found in production and job-shop environments.\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 supports high cutting speeds and dry machining conditions\u003c\/li\u003e\n  \u003cli\u003e0.01-inch corner radius reduces chipping risk at cutting edges and part stress risers\u003c\/li\u003e\n  \u003cli\u003eFour right-hand spiral flutes at 30-degree helix for efficient chip evacuation\u003c\/li\u003e\n  \u003cli\u003eCentercutting design allows direct plunge entry without a pre-drilled hole\u003c\/li\u003e\n  \u003cli\u003eSingle-end configuration with 0.125-inch shank diameter for collet or ER toolholder use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style cutting tool for use in CNC machining centers and manual mills accepting a 0.125-inch straight shank via collet, ER, or set-screw toolholders. No specific machine model compatibility was provided by the manufacturer for this part number.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and tool changes should be performed by a qualified machinist with the spindle fully stopped and the machine in an e-stop or locked-out state. Seat the 0.125-inch shank fully into the toolholder and torque the collet nut to the toolholder manufacturer's specification — do not rely on hand-tight alone at this diameter. Verify runout with a dial indicator before production cuts, as runout beyond 0.0002 inches at this cutter diameter significantly accelerates wear. Follow your shop's established feeds-and-speeds parameters for the workpiece material; do not extrapolate from larger-diameter end mill data without adjustment.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.0781 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.01 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.125 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 30 degrees\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\/Finish\u003c\/strong\u003e: AlTiN\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\u003eFlute Type\u003c\/strong\u003e: Spiral\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\u003eMill Diameter Tolerance\u003c\/strong\u003e: +0.0002 \/ -0.0008 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius Tolerance\u003c\/strong\u003e: 0.001 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: 0.01 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: 12176908\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51729286857010,"sku":"12176908","price":31.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/39b3d94a1627aad72338500efa74e11c.jpg?v=1788702466","url":"https:\/\/voomisupply.com\/products\/accupro-12176908-corner-radius-end-mill-0-0781in-4-flute","provider":"Voomi Supply","version":"1.0","type":"link"}