{"product_id":"accupro-2500346-square-end-mill-1-4in-6-flute-carbide-altin","title":"Accupro 2500346 Square End Mill 1\/4in 6 Flute Carbide Altin","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 2500346 is a 6-flute, solid carbide square end mill designed for high-performance milling in demanding materials. It carries a 1\/4 inch cutting diameter, a 3\/4 inch length of cut, and a 4 inch overall length, placing it in the long-reach category. The AlTiN (aluminum titanium nitride) coating provides high-heat resistance and extended tool life when cutting hardened steels, stainless alloys, and cast iron at elevated speeds. Micrograin carbide substrate adds toughness and edge retention. The 25-degree helix angle and variable index flute geometry help reduce chatter and improve chip evacuation in deep-pocket and slotting operations. Machinists and tool-and-die professionals use this end mill in CNC machining centers and manual knee mills alike.\u003c\/p\u003e\u003cp\u003eThis end mill is suited for finish and semi-finish milling of ferrous metals, hardened steels, and high-temperature alloys in both production shop and job-shop environments. The long-reach geometry makes it appropriate for deep-cavity work, die pockets, and applications where standard-length tools cannot reach the floor of the cut. The 1\/4 inch shank diameter fits standard collet chucks and end mill holders common to light-duty spindles and high-speed machining centers.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e6-flute design increases feed-per-tooth potential and improves surface finish compared to 4-flute geometry\u003c\/li\u003e\n\u003cli\u003eAlTiN coating delivers high-temperature hardness and oxidation resistance for dry and near-dry cutting\u003c\/li\u003e\n\u003cli\u003eMicrograin carbide substrate provides a fine, consistent cutting edge and improved wear resistance\u003c\/li\u003e\n\u003cli\u003e25-degree right-hand helix promotes smooth chip flow and reduces radial cutting forces\u003c\/li\u003e\n\u003cli\u003eVariable index flute spacing reduces harmonic vibration and chatter during aggressive cuts\u003c\/li\u003e\n\u003cli\u003eCenter-cutting capability allows plunge entry as well as peripheral and slot milling\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-fit option for 1\/4 inch collet chucks, end mill holders, and shrink-fit tooling systems accepting a 1\/4 inch shank diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist following shop safety procedures. Ensure the spindle is fully stopped and the machine is locked out before changing tooling. Use a calibrated collet or end mill holder torqued to the tool holder manufacturer's specification to prevent pullout. Verify runout with a dial indicator after installation before beginning a cut, particularly for tight-tolerance finishing operations.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 1\/4 inch (0.2500 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 3\/4 inch (0.75 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1\/4 inch (0.25 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 6\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\u003eHelix Angle\u003c\/strong\u003e: 25 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Index\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentercutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Long\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: +0.000 to -0.002 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\u003eWeight\u003c\/strong\u003e: 0.02 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27112803\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: 2500346\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51727234892082,"sku":"2500346","price":93.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6698e1570ee3d4a9d7ccdf3964a5e99f.jpg?v=1788675153","url":"https:\/\/voomisupply.com\/products\/accupro-2500346-square-end-mill-1-4in-6-flute-carbide-altin","provider":"Voomi Supply","version":"1.0","type":"link"}