{"product_id":"accupro-2500471-ball-end-mill-4mm-3-flute-solid-carbide-zrn","title":"Accupro 2500471 Ball End Mill 4mm 3 Flute Solid Carbide Zrn","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 2500471 is a single-end ball end mill designed for precision milling operations in ferrous and non-ferrous materials. Built from micrograin solid carbide, it delivers rigidity and wear resistance in demanding cutting conditions. The 4.00 mm diameter cutting head is paired with a 12.00 mm length of cut and a 37-degree helix angle, promoting efficient chip evacuation and smooth surface finishes. A ZrN (zirconium nitride) coating reduces friction and extends tool life. The 4.00 mm shank diameter matches the cutting diameter for balanced tool holding. This end mill is suited for machinists and tooling professionals running CNC milling centers or manual knee mills requiring tight-tolerance profiling and contouring work.\u003c\/p\u003e\u003cp\u003eThis end mill is intended for use in machining applications that require a ball-nose profile, including 3D contouring, slotting, and finishing passes on molds, dies, and precision components. The 3-flute configuration balances chip clearance with cutting edge count, making it effective across a range of materials including alloy steels, stainless steels, and hardened workpieces when paired with appropriate feeds and speeds. The 50.00 mm overall length provides a compact reach suited to standard tool holding in production and prototype environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMicrograin solid carbide construction for high hardness and edge retention\u003c\/li\u003e\n\u003cli\u003eZrN coating reduces friction and improves tool life in ferrous materials\u003c\/li\u003e\n\u003cli\u003e37-degree helix angle promotes efficient chip flow and reduced cutting forces\u003c\/li\u003e\n\u003cli\u003e3-flute design balances material removal rate with chip evacuation\u003c\/li\u003e\n\u003cli\u003eRight-hand cut and right-hand flute spiral for standard CNC mill setups\u003c\/li\u003e\n\u003cli\u003eSingle-end ball nose profile suited for 3D contouring and profiling passes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard-shank ball end mill compatible with ER collet chucks, shrink-fit holders, and milling chucks accepting a 4.00 mm shank diameter. Manufacturer catalog reference number 350MM-01575BNC5.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and tool changes should be performed by a qualified machinist with the spindle fully stopped and machine power locked out per shop safety procedures. Verify collet or chuck runout before cutting to preserve the tight mill diameter tolerance of +0.000\/-0.002 inches. Do not exceed manufacturer-recommended feeds and speeds for the workpiece material and coating type. Inspect the cutting edges for chipping or wear before each use.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 4.00 mm (0.1575 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 12.00 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 50.00 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 4.00 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 37 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\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: ZrN (Zirconium Nitride)\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: 0.5 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: 2500471\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51740186935602,"sku":"2500471","price":79.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/545394407b308132e56a4fc92f2961ea.jpg?v=1788823321","url":"https:\/\/voomisupply.com\/products\/accupro-2500471-ball-end-mill-4mm-3-flute-solid-carbide-zrn","provider":"Voomi Supply","version":"1.0","type":"link"}