{"product_id":"accupro-12182474-corner-radius-end-mill-1-4-in-4-flute-altin","title":"Accupro 12182474 Corner Radius End Mill 1\/4 in 4 Flute Altin","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ACCUPRO 12182474 is a solid carbide corner radius end mill designed for precision milling in demanding metalworking applications. It features a 1\/4 inch diameter, a 3\/4 inch length of cut, and a 0.09 inch corner radius that reduces stress concentrations and extends tool life in high-cycle operations. The 4-flute geometry combined with a 40-degree helix angle promotes efficient chip evacuation and smooth surface finishes. An AlTiN coating provides thermal resistance and hardness at elevated cutting temperatures. This tool is intended for use by machinists, toolroom operators, and CNC programmers working in production or job-shop environments.\u003c\/p\u003e\n\u003cp\u003eThis end mill is suited for slotting, profiling, and contouring operations in ferrous metals, hardened steels, stainless steels, and high-temperature alloys. The centercutting design allows plunge entry, giving the tool flexibility in 3-axis and multi-axis CNC machining centers. The single-end configuration and 1\/4 inch shank make it compatible with standard ER collet chucks, end mill holders, and shrink-fit tooling systems commonly used in vertical and horizontal machining centers.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e0.09 inch corner radius reduces edge chipping and improves workpiece surface finish\u003c\/li\u003e\n  \u003cli\u003eAlTiN coating enhances wear resistance and performance in dry or minimal-lubrication cutting\u003c\/li\u003e\n  \u003cli\u003e4-flute, right-hand spiral geometry with 40-degree helix for efficient chip flow\u003c\/li\u003e\n  \u003cli\u003eMicrograin solid carbide substrate provides rigidity and dimensional stability\u003c\/li\u003e\n  \u003cli\u003eCentercutting end allows direct plunge milling without a pre-drilled entry hole\u003c\/li\u003e\n  \u003cli\u003e2-1\/2 inch overall length with 1\/4 inch shank fits standard collet and end mill holder setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-use cutting tool for CNC machining centers and manual mills accepting 1\/4 inch shank tooling with standard ER or end mill holder collet systems.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and tool changes should be performed by a qualified machinist with the spindle fully stopped and the machine in a safe, locked-out state. Verify runout at the shank using a dial indicator before committing to production cuts. Torque collet nuts to the toolholder manufacturer specification. Inspect the corner radius and cutting edges for chips or wear before each use, as carbide tools can fail suddenly if damage is present.\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 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 3\/4 inch (1.0000 inch decimal)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.09 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius Tolerance\u003c\/strong\u003e: plus or minus 0.00150 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: +0.000000 to -0.002500 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1\/4 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: -0.0001 to -0.0004 inch\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\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\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\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\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 (Micrograin)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: AlTiN\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: 0.06 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: 12182474\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51739073249586,"sku":"12182474","price":50.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/09bbc66fcc9cceb59cf78d48dd3872f3.jpg?v=1788808940","url":"https:\/\/voomisupply.com\/products\/accupro-12182474-corner-radius-end-mill-1-4-in-4-flute-altin","provider":"Voomi Supply","version":"1.0","type":"link"}