{"product_id":"accupro-12176684-corner-radius-end-mill-0-3438in-3-flute","title":"Accupro 12176684 Corner Radius End Mill 0.3438in 3 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 12176684 is a solid carbide corner radius end mill designed for precision milling operations in ferrous and non-ferrous materials. It features a 0.3438-inch mill diameter, a 0.02-inch corner radius, and three right-hand spiral flutes with a 35-degree helix angle. The AlTiN (aluminum titanium nitride) coating provides elevated heat resistance and extended tool life in high-speed and dry-cutting applications. This is a single-end, centercutting tool, meaning it can plunge directly into the workpiece. The micrograin carbide substrate supports tight tolerances and consistent edge geometry across the full length of cut. Machinists and toolmakers running CNC mills, VMCs, or manual knee mills will find this a reliable choice for profiling, slotting, and contouring cuts that require a radiused corner.\u003c\/p\u003e\u003cp\u003eThis end mill is suited for use in machine shops, production environments, and tool rooms handling steel, stainless steel, cast iron, hardened alloys, and similar materials where an AlTiN coating delivers performance advantages. The 0.5-inch length of cut and 2-inch overall length make it well suited for shallow-to-medium-depth profiling passes. The 3\/8-inch shank diameter fits standard ER collets, end mill holders, and shrink-fit tooling commonly found in CNC machining centers. Right-hand cutting direction is compatible with standard CNC spindle rotation.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e0.02-inch corner radius reduces stress concentrations and extends tool life at the cutting edge\u003c\/li\u003e\n\u003cli\u003eAlTiN coating improves heat resistance and wear performance in ferrous materials and high-speed dry cutting\u003c\/li\u003e\n\u003cli\u003eMicrograin solid carbide substrate supports tight dimensional tolerances and sharp edge retention\u003c\/li\u003e\n\u003cli\u003e35-degree helix angle promotes efficient chip evacuation and smooth cutting action\u003c\/li\u003e\n\u003cli\u003eCentercutting design allows direct plunge entry without a pre-drilled pilot hole\u003c\/li\u003e\n\u003cli\u003eRight-hand flute direction and right-hand cutting rotation compatible with standard CNC spindle setups\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-use end mill compatible with standard 3\/8-inch end mill holders, ER collet chucks, and shrink-fit tooling systems used in CNC vertical machining centers and manual milling machines.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or CNC setup technician. Power down and lock out the spindle before inserting or removing tooling. Ensure the shank is fully seated to the recommended engagement depth in the holder and that the collet or set screw is torqued per the toolholder manufacturer specifications. Inspect the cutting edges and corner radius for chips or wear before each use; carbide tooling is brittle and should not be dropped or mishandled.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.3438 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\u003eCorner Radius\u003c\/strong\u003e: 0.02 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\u003eLength of Cut\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.375 inches (3\/8 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: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 35 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\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\u003eVariable Helix\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\u003eExtended Reach\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Regular\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: 12176684\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51732016628018,"sku":"12176684","price":71.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1daf16c42cc5078d6b61eeea32357b21.jpg?v=1788738153","url":"https:\/\/voomisupply.com\/products\/accupro-12176684-corner-radius-end-mill-0-3438in-3-flute","provider":"Voomi Supply","version":"1.0","type":"link"}