{"product_id":"accupro-12182990-corner-radius-end-mill-1-in-4-flute-carbide","title":"Accupro 12182990 Corner Radius End Mill 1 in 4 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 12182990 is a solid carbide corner radius end mill designed for precision milling in demanding metalworking applications. It features a 1 inch cutting diameter, a 2.25 inch length of cut, and a 0.03 inch corner radius that reduces stress concentrations and extends tool life at the cutting edge. The 5 inch overall length and 1 inch shank diameter provide rigidity in deep-reach applications. An AlTiN coating delivers high heat and wear resistance, making this end mill well suited for ferrous alloys, hardened steels, and high-temperature superalloys. Licensed machinists and CNC programmers specify this tool for high-efficiency milling passes where edge integrity and dimensional accuracy are critical.\u003c\/p\u003e\u003cp\u003eThis end mill is intended for CNC machining centers and manual mills in job shops, production facilities, and toolroom environments. The long-length configuration supports slots, pockets, and profiling operations where standard-reach tooling cannot reach the full depth of cut. The centercutting geometry allows plunge entry, increasing setup flexibility. Right-hand flute direction and right-hand cutting action are standard for conventional CNC spindle configurations.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e1 inch cutting diameter with 0.03 inch corner radius for reduced notching and improved surface finish\u003c\/li\u003e\n\u003cli\u003eAlTiN coating for elevated heat resistance and extended tool life in ferrous and hardened materials\u003c\/li\u003e\n\u003cli\u003eSolid carbide micrograin construction for rigidity and edge sharpness retention\u003c\/li\u003e\n\u003cli\u003e4 spiral flutes, right-hand cut, right-hand helix at 40 degrees\u003c\/li\u003e\n\u003cli\u003eCentercutting design allows direct plunge entry\u003c\/li\u003e\n\u003cli\u003eLong-length configuration at 5 inches OAL with 2.25 inches LOC for deep-reach applications\u003c\/li\u003e\n\u003cli\u003eSingle end design — one active cutting end\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a direct-fit replacement or upgrade for 1 inch shank, corner radius end mill applications on standard CNC machining centers and manual mills accepting 1 inch straight shanks. No specific OEM model compatibility 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 or CNC setup technician. Secure the shank fully within the toolholder collet or end mill holder to the manufacturer-specified engagement depth before tightening. Verify runout at the cutting diameter before beginning a production run. Always confirm spindle speed and feed rate parameters are appropriate for the workpiece material and depth of cut before engaging the tool.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 2.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1 inch\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 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: 4\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\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\u003eLength Type\u003c\/strong\u003e: Long\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\u003c\/strong\u003e: AlTiN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.89 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: 12182990\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51735020306738,"sku":"12182990","price":510.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/17b45df7b58c7ac907ee22515b4169e1_e899cc0c-3cc4-4366-9364-84f73ca68b24.jpg?v=1788769285","url":"https:\/\/voomisupply.com\/products\/accupro-12182990-corner-radius-end-mill-1-in-4-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}