{"product_id":"accupro-313609-ball-end-mill-5-16-in-2-flute-solid-carbide","title":"Accupro 313609 Ball End Mill 5\/16 in 2 Flute Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 313609 is a single-end ball end mill designed for precision milling operations in metal, composite, and plastic workpieces. Built from micrograin solid carbide, it delivers the rigidity and wear resistance required for demanding finishing and profiling cuts. The 5\/16-inch cutting diameter pairs with a 45-degree helix angle to promote smooth chip evacuation and reduce chatter during radial engagement. With two flutes and a bright, uncoated finish, this end mill suits high-speed operations where coating buildup is a concern. A licensed machinist or CNC programmer typically specifies this tool for contouring, slotting, and 3D profiling passes.\u003c\/p\u003e\u003cp\u003eThis ball end mill is well suited to job shop and production environments running vertical or horizontal CNC machining centers. Its 13\/16-inch length of cut accommodates moderate-depth profiling and cavity work. The 5\/16-inch shank diameter fits standard ER and straight-bore collet systems common in most CNC and manual milling setups. Right-hand cutting direction and right-hand flute spiral make it compatible with conventional spindle rotation on the majority of milling machines in use today.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMicrograin solid carbide construction for extended tool life and edge stability\u003c\/li\u003e\n\u003cli\u003e45-degree helix angle promotes efficient chip evacuation and reduces cutting forces\u003c\/li\u003e\n\u003cli\u003eBright\/uncoated finish suited for high-speed cuts where heat buildup is managed by coolant or air blast\u003c\/li\u003e\n\u003cli\u003eRight-hand cut with right-hand spiral flutes for standard spindle compatibility\u003c\/li\u003e\n\u003cli\u003eSingle-end design with consistent 5\/16-inch shank and cutting diameter for straightforward setup\u003c\/li\u003e\n\u003cli\u003eNo chipbreaker, no variable helix — straightforward geometry for general profiling and finishing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a general-purpose replacement or production ball end mill for CNC and manual milling machines accepting a 5\/16-inch straight shank via collet or tool holder.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or tooling technician. Secure the shank fully within the collet or tool holder to the manufacturer-recommended insertion depth before tightening. Confirm spindle rotation is set to right-hand before engaging the cut. Inspect the cutting edge for chips or damage before each use, and verify runout with a dial indicator when tight tolerances are required.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 5\/16 inches (0.3125 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 13\/16 inches\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\u003eShank Diameter\u003c\/strong\u003e: 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\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide (Micrograin)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 45 degrees\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\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\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 \/ -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: 0.08 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: 313609\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51752935326002,"sku":"313609","price":69.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c199ed7e3e64b8e32f375b9cc91d6bf9_debfffb7-2d62-4a3b-9afb-60985c56b196.jpg?v=1788931285","url":"https:\/\/voomisupply.com\/products\/accupro-313609-ball-end-mill-5-16-in-2-flute-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}