{"product_id":"accupro-2500329-corner-radius-end-mill-1-4-in-6-flute","title":"Accupro 2500329 Corner Radius End Mill 1\/4 in 6 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 2500329 is a solid carbide corner radius end mill designed for precision milling operations in ferrous and non-ferrous materials. Built with 6 flutes and a 0.0200-inch corner radius, it delivers a fine surface finish while extending tool life in high-speed applications. The AlTiN coating provides thermal resistance and hardness, making it well suited for dry or minimal-lubrication cutting. At 1\/4 inch in diameter with a 3\/8 inch length of cut and a stub-length profile, this end mill is engineered for rigidity and reduced deflection in close-tolerance work. Machining professionals and tool-and-die shops rely on this geometry for finishing passes and radius blending on hardened steels and alloy materials.\u003c\/p\u003e\u003cp\u003eThis end mill is used in CNC milling operations where a controlled corner radius is required to reduce stress concentrations in pockets, slots, and profiling cuts. Its single-end, centercutting design allows plunge entry, making it versatile for both roughing entries and finish profiling. The right-hand cutting direction and right-hand flute spiral are standard for conventional CNC vertical and horizontal machining centers. Machinists working on mold and die components, aerospace parts, or precision mechanical assemblies will find the stub-length design advantageous where clearance is limited and rigidity is critical.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e0.0200-inch corner radius reduces stress risers and improves surface finish on inside corners\u003c\/li\u003e\n\u003cli\u003e6-flute design increases feed rate capability and improves finish compared to lower flute counts\u003c\/li\u003e\n\u003cli\u003eAlTiN coating provides high-temperature resistance and extended tool life in hardened materials\u003c\/li\u003e\n\u003cli\u003eCentercutting geometry allows direct plunge entry without pre-drilling\u003c\/li\u003e\n\u003cli\u003eMicrograin solid carbide construction delivers consistent edge integrity and wear resistance\u003c\/li\u003e\n\u003cli\u003eStub-length profile maximizes rigidity and minimizes deflection in short-reach applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and standard fitment for CNC machining centers accepting 1\/4 inch shank end mills with ER or equivalent collet systems.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or CNC setup technician. Ensure the spindle is fully de-energized and the machine is in a safe state before changing tooling. Seat the shank fully into the collet or tool holder to the recommended gauge-line depth and torque the retention nut per the tool holder manufacturer specifications. Verify runout with a dial indicator before running the first cut; maximum TIR for this tool is 0.0005 inches.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.2500 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.3750 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0200 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.2500 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 25 degrees\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: Stub\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentercutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Helix\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\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: AlTiN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: +0.000000 \/ -0.002000 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: +0.0001 \/ -0.0004 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum TIR\u003c\/strong\u003e: 0.0005 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle or Double End\u003c\/strong\u003e: Single\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.02 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: 2500329\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51728194339122,"sku":"2500329","price":73.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6698e1570ee3d4a9d7ccdf3964a5e99f_37f06889-f57c-4a36-8d9a-38a5af2eed01.jpg?v=1788689314","url":"https:\/\/voomisupply.com\/products\/accupro-2500329-corner-radius-end-mill-1-4-in-6-flute","provider":"Voomi Supply","version":"1.0","type":"link"}