{"product_id":"accupro-12185369-ball-end-mill-0-25-in-4-flute-solid-carbide","title":"Accupro 12185369 Ball End Mill 0.25 in 4 Flute Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 12185369 is a solid carbide ball end mill designed for precision milling of contoured surfaces, cavities, and complex 3D profiles. Built with four flutes and a 40-degree helix angle, it promotes efficient chip evacuation and smooth cutting action in a range of ferrous and non-ferrous materials. The AlTiN coating provides thermal resistance and extended tool life in demanding, high-speed machining applications. At 0.25 inches in diameter with a 0.5 inch length of cut, this end mill is suited for fine-detail work where rigidity and edge sharpness are critical. Machinists and toolroom technicians install this tool in CNC machining centers and manual mills.\u003c\/p\u003e\u003cp\u003eThis end mill is configured as a double-end tool, offering two cutting ends on a single shank to extend usable tool life and reduce per-part tooling costs. With a 0.25 inch shank diameter and 2.5 inch overall length, it fits standard ER and collet-style toolholders commonly found in vertical machining centers. The stub-length classification keeps deflection low, making it well suited for semi-finish and finish passes on hardened steels, stainless, titanium, and heat-resistant alloys where AlTiN coating performance is most effective.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction for rigidity and wear resistance in hard-material applications\u003c\/li\u003e\n\u003cli\u003eAlTiN coating for high-temperature resistance and extended tool life\u003c\/li\u003e\n\u003cli\u003eFour-flute, right-hand spiral design promotes efficient chip flow and smooth surface finish\u003c\/li\u003e\n\u003cli\u003e40-degree helix angle reduces cutting forces and improves finish quality\u003c\/li\u003e\n\u003cli\u003eDouble-end configuration maximizes value per tool\u003c\/li\u003e\n\u003cli\u003eStub-length geometry minimizes deflection during finish passes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and standard tooling option for CNC machining centers and manual mills accepting 0.25 inch shank diameter collet or ER-style toolholders.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or toolroom technician. Ensure the machine spindle is fully stopped and locked out before inserting or removing tooling. Seat the shank fully into the collet or toolholder to the recommended engagement depth before tightening. Verify runout with a dial indicator before beginning a cut to confirm proper seating and minimize premature tool wear.\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\u003eLength of Cut\u003c\/strong\u003e: 0.5 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: 0.25 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 Mill Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: AlTiN\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\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle or Double End\u003c\/strong\u003e: Double\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Stub\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.06 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: 12185369\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51751172276530,"sku":"12185369","price":77.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/caeb4e61d0c1f3db4c724ff3e47bf802.jpg?v=1788922040","url":"https:\/\/voomisupply.com\/products\/accupro-12185369-ball-end-mill-0-25-in-4-flute-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}