{"product_id":"accupro-12183645-corner-radius-end-mill-1-4-in-4-flute","title":"Accupro 12183645 Corner Radius End Mill 1\/4 in 4 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 12183645 is a solid carbide corner radius end mill designed for precision milling operations where edge durability and profile accuracy are critical. The cutting diameter is 0.25 inches with a 0.01 inch corner radius and a 1.5 inch length of cut. The tool features a TiCN (Titanium Carbonitride) coating that improves wear resistance and extends tool life in abrasive materials. At 6 inches overall length, this is an extra-long configuration suited for deep-reach applications. Machining professionals and tool-and-die shops rely on this geometry for contouring, slotting, and finishing passes where a sharp corner would chip or fail prematurely.\u003c\/p\u003e\u003cp\u003eThis end mill is used in CNC machining centers for ferrous and non-ferrous materials where a corner radius is required to reduce stress concentration in milled features. The extra-long reach makes it well suited for deep pockets, mold cavities, and tall workpiece setups. The centercutting design allows plunge entry directly into the workpiece. Right-hand flute direction and right-hand cutting orientation are standard for conventional vertical and horizontal machining center spindles.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e0.01 inch corner radius reduces edge chipping and improves surface finish at milled corners\u003c\/li\u003e\n\u003cli\u003eTiCN coating provides enhanced hardness and wear resistance versus uncoated carbide\u003c\/li\u003e\n\u003cli\u003eMicrograin solid carbide substrate supports high cutting speeds and tight tolerances\u003c\/li\u003e\n\u003cli\u003e4-flute spiral configuration balances chip evacuation with surface finish quality\u003c\/li\u003e\n\u003cli\u003eCentercutting capability allows direct plunge milling without pre-drilling\u003c\/li\u003e\n\u003cli\u003eExtra-long 6 inch OAL enables deep-reach applications in tall fixtures or deep cavities\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard 1\/4 inch shank end mill compatible with ER collets, end mill holders, and shrink-fit toolholders accepting 1\/4 inch shank tooling on CNC machining centers and manual mills.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by qualified machinists following shop safety procedures. Ensure the spindle is fully stopped and the machine is in an e-stop or lockout state before changing tooling. Use a properly sized collet or toolholder to achieve full shank engagement and minimize runout. Avoid overhang beyond what the application requires, as extra-long tools are more susceptible to deflection at aggressive feed rates.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 1.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6 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\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide (Micrograin)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiCN\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\u003eLength Type\u003c\/strong\u003e: Extra Long\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\u003eVariable Index\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Reach\u003c\/strong\u003e: No\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\u003eCorner Radius Tolerance\u003c\/strong\u003e: 0.00150 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.16 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: 12183645\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51728107110706,"sku":"12183645","price":109.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0df79661ace95fa1d7e1218521f4abf1.jpg?v=1788688092","url":"https:\/\/voomisupply.com\/products\/accupro-12183645-corner-radius-end-mill-1-4-in-4-flute","provider":"Voomi Supply","version":"1.0","type":"link"}