{"product_id":"accupro-12180846-corner-radius-end-mill-1-4-in-7-flute","title":"Accupro 12180846 Corner Radius End Mill 1\/4 in 7 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ACCUPRO 12180846 is a 7-flute, solid carbide corner radius end mill designed for high-performance milling in demanding materials. Built from micrograin carbide and coated with AlTiN (aluminum titanium nitride), it handles elevated cutting temperatures and abrasive workpiece materials effectively. The 0.03-inch corner radius reduces stress concentration at the cutting edge, extending tool life in both roughing and finishing passes. With a 1\/4-inch mill diameter, a 3\/8-inch length of cut, and a 4-inch overall length, this end mill suits applications where reach and precision matter. It is a single-end, centercutting tool with right-hand flute direction and right-hand cutting direction.\u003c\/p\u003e\n\u003cp\u003eThis end mill is used in CNC milling operations across metalworking shops, tool rooms, and production environments. The extended reach design, with a 2-1\/2-inch reach length and a reduced neck diameter of 0.236 inches, allows access into pockets, slots, and deep-wall features where a standard-length tool cannot reach. The variable index flute spacing helps dampen vibration and chatter during aggressive cuts. It is suited for milling hardened steels, stainless steels, titanium, and other high-temperature alloys where an AlTiN coating provides thermal resistance and lubricity.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e7-flute, spiral-flute geometry increases feed rate capability and chip evacuation efficiency\u003c\/li\u003e\n  \u003cli\u003eAlTiN coating provides oxidation resistance and hardness at elevated cutting temperatures\u003c\/li\u003e\n  \u003cli\u003eCentercutting design allows plunge milling directly into the workpiece\u003c\/li\u003e\n  \u003cli\u003eExtended reach with 2-1\/2-inch reach length and reduced 0.236-inch neck diameter for deep-pocket access\u003c\/li\u003e\n  \u003cli\u003eVariable index flute spacing reduces harmonic vibration and chatter\u003c\/li\u003e\n  \u003cli\u003eMicrograin solid carbide substrate for rigidity, wear resistance, and edge retention\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-use end mill compatible with standard 1\/4-inch collet chucks, ER collet systems, and hydraulic or shrink-fit toolholders used in CNC milling machines and machining centers.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by qualified CNC machinists or toolroom technicians. Secure the 1\/4-inch shank in a clean, properly sized collet or toolholder and torque to the toolholder manufacturer's specification. Inspect the shank and collet bore for chips or contamination before clamping. Confirm runout with a dial indicator before beginning production cuts, as excessive runout will accelerate edge wear on a 7-flute tool.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 1\/4 inch (0.2500 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 7\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 3\/8 inch (0.3750 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: 0.236 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReach Length\u003c\/strong\u003e: 2-1\/2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.03 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius Tolerance\u003c\/strong\u003e: plus or minus 0.0015 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\u003eHelix Angle\u003c\/strong\u003e: 38 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Corner Radius\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\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: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVariable Index\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand\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: 0.102 pounds\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: 12180846\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51748230693170,"sku":"12180846","price":116.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/61f5c7a7c95490e42841c77e7659b1e5_2580bea1-d3cf-42b0-bb90-3d843d215bb9.jpg?v=1788890725","url":"https:\/\/voomisupply.com\/products\/accupro-12180846-corner-radius-end-mill-1-4-in-7-flute","provider":"Voomi Supply","version":"1.0","type":"link"}