{"product_id":"accupro-12183980-ball-end-mill-5-16-in-2-flute-solid-carbide","title":"Accupro 12183980 Ball End Mill 5\/16 in 2 Flute Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ACCUPRO 12183980 is a solid carbide ball end mill designed for contour milling, profiling, and 3D surface machining on CNC milling machines. It carries a 0.3125-inch (5\/16-inch) cutting diameter with a 0.75-inch length of cut, ground from micrograin carbide for edge stability and wear resistance. The 40-degree helix angle promotes efficient chip evacuation and smooth cutting action. With a 2-flute, single-end configuration and right-hand cutting and flute direction, this tool is a standard choice for machinists working in steel, aluminum, and similar materials where a ball-nose profile is required.\u003c\/p\u003e\n\u003cp\u003eThis end mill is suited for job shops, tool rooms, and production machining environments running CNC vertical mills or machining centers. The 5\/16-inch shank diameter matches the cutting diameter, allowing use in standard collet chucks or end mill holders without adapter sleeves. The uncoated micrograin carbide construction makes it a practical option for general-purpose applications where coated tooling is not required, and it is sold as a single-end tool in a quantity of one per package.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eMicrograin solid carbide construction for improved edge retention and rigidity\u003c\/li\u003e\n  \u003cli\u003e40-degree helix angle promotes chip evacuation and reduces cutting forces\u003c\/li\u003e\n  \u003cli\u003eBall-nose profile suited for contour milling, profiling, and 3D surface work\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut, right-hand spiral, single-end configuration\u003c\/li\u003e\n  \u003cli\u003eUncoated finish for general-purpose machining applications\u003c\/li\u003e\n  \u003cli\u003eMill diameter tolerance of +0.000 to -0.002 inches for consistent fit and runout control\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-use ball end mill for standard CNC milling setups accepting a 5\/16-inch shank in collet chucks or end mill holders.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a qualified machinist or CNC operator. Ensure the machine spindle is fully stopped and locked out before inserting or removing tooling. Seat the shank fully into the collet or holder to the minimum clamping depth recommended by the toolholder manufacturer before tightening. Inspect the cutting edges for chips or damage before each use and replace the tool if edge integrity is compromised.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.3125 inches (5\/16 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.75 inches (3\/4 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: 0.3125 inches (5\/16 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\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, Micrograin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Uncoated\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\u003eSingle or Double End\u003c\/strong\u003e: Single\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 to -0.0004 inches\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\u003eChipbreaker\u003c\/strong\u003e: No\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: 12183980\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51746761802034,"sku":"12183980","price":46.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e0fba868f34f93437e967c273d1d0952.jpg?v=1788873422","url":"https:\/\/voomisupply.com\/products\/accupro-12183980-ball-end-mill-5-16-in-2-flute-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}