{"product_id":"accupro-12181333-corner-radius-end-mill-1-4-in-2-flute-carbide","title":"Accupro 12181333 Corner Radius End Mill 1\/4 in 2 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ACCUPRO 12181333 is a solid carbide corner radius end mill designed for precision milling operations in metalworking and machining environments. It features a 1\/4 inch mill diameter with a 3\/4 inch length of cut and a 0.03 inch corner radius, making it well suited for producing smooth corner transitions and reducing stress concentrations at part corners. The 2-flute, single-end design with a right-hand spiral flute and right-hand cutting direction provides efficient chip evacuation in a range of ferrous and non-ferrous materials. The bright\/uncoated finish and micrograin solid carbide construction deliver consistent edge integrity across general-purpose milling applications. Installation and operation require a standard CNC machining center or manual milling machine with a compatible 1\/4 inch collet or tool holder.\u003c\/p\u003e\n\u003cp\u003eThis end mill is intended for use in machine shops, tool rooms, and production environments where tight corner radius tolerances are required. The centercutting geometry allows for plunge entry, adding versatility for slotting, profiling, and pocket milling operations. With a 40-degree helix angle and micrograin carbide substrate, it performs in both conventional and climb milling passes on light-to-medium-duty cuts. It is appropriate for use by machinists and CNC operators working with aluminum, brass, steel, and similar materials where controlled corner geometry is critical to part quality.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid micrograin carbide construction for consistent cutting edge strength and wear resistance\u003c\/li\u003e\n  \u003cli\u003e0.03 inch corner radius with a tolerance of plus or minus 0.00150 inches for precise corner geometry\u003c\/li\u003e\n  \u003cli\u003eCentercutting design enables direct plunge entry for slotting and pocket operations\u003c\/li\u003e\n  \u003cli\u003e40-degree helix angle promotes smooth chip flow and reduced cutting forces\u003c\/li\u003e\n  \u003cli\u003eBright\/uncoated finish suitable for general-purpose applications including non-ferrous materials\u003c\/li\u003e\n  \u003cli\u003eRight-hand flute direction and right-hand cutting direction for standard spindle operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement and general-purpose corner radius end mill for use in any milling machine or machining center equipped with a standard 1\/4 inch collet, ER collet chuck, or equivalent 1\/4 inch straight-shank tool holder.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis tool is installed by a qualified machinist or CNC operator using a properly sized collet or end mill holder rated for the 1\/4 inch shank diameter. Ensure the machine spindle is fully stopped and the tool holder is clean and free of debris before securing the end mill. Verify runout with a dial indicator after tool installation to confirm concentricity within acceptable limits for the application. Follow all machine guarding and PPE requirements per shop safety standards when operating milling equipment.\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\u003eLength of Cut\u003c\/strong\u003e: 3\/4 inch (0.7500 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2-1\/2 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\u003eCorner Radius\u003c\/strong\u003e: 0.0300 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius Tolerance\u003c\/strong\u003e: plus or minus 0.00150 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: +0.000000 to -0.002500 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: -0.0001 to -0.0004 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: 40 degrees\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\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Micrograin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\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: 0.12 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: 12181333\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51739294204210,"sku":"12181333","price":40.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c90afa230b1828bb71f50123ab69b524.jpg?v=1788812782","url":"https:\/\/voomisupply.com\/products\/accupro-12181333-corner-radius-end-mill-1-4-in-2-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}