{"product_id":"accupro-315215-ball-end-mill-1-4-in-3-flute-solid-carbide","title":"Accupro 315215 Ball End Mill 1\/4 in 3 Flute Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 315215 is a single-end ball end mill designed for precision milling of contoured surfaces, 3D profiles, and complex geometries in ferrous and non-ferrous materials. It features a 0.2500 inch mill diameter, a 1-1\/4 inch length of cut, and a 3-inch overall length with a 1\/4 inch shank. The tool is ground from micrograin solid carbide for rigidity and wear resistance, and carries a ZrN (zirconium nitride) coating that improves surface hardness and reduces friction at the cutting edge. The 37-degree helix angle promotes efficient chip evacuation and smooth cutting action. Three right-hand spiral flutes provide a balance of chip clearance and edge strength for general-purpose contouring work.\u003c\/p\u003e\u003cp\u003eThis end mill is suited for CNC machining centers and manual mills in job shop, tool-and-die, and production environments. Typical applications include profiling, slotting, and finish passes on molds, dies, and workpiece radii. The ZrN coating makes it a practical choice when machining stainless steel, alloy steels, cast iron, and harder non-ferrous alloys where tool life and surface finish are priorities. It is most commonly installed by machinists and CNC operators working in precision metalworking and mold-making operations.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMicrograin solid carbide construction for rigidity and extended tool life\u003c\/li\u003e\n\u003cli\u003eZrN coating reduces cutting friction and improves wear resistance\u003c\/li\u003e\n\u003cli\u003e37-degree right-hand helix angle for efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eThree right-hand spiral flutes balance chip clearance and cutting edge strength\u003c\/li\u003e\n\u003cli\u003eSingle-end configuration with a ball nose profile for contoured and 3D surface milling\u003c\/li\u003e\n\u003cli\u003eMill diameter tolerance of +0.000 \/ -0.002 inches for consistent fitment and accuracy\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in standard 1\/4 inch collets and end mill holders on CNC machining centers and manual vertical mills requiring a single-end ball nose end mill with a 1\/4 inch shank diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or CNC operator. Ensure the spindle is fully stopped and machine power is off before changing tooling. Seat the shank fully in a properly sized collet or end mill holder and torque the retention nut per the toolholder manufacturer specification. Inspect the cutting edges and coating for chips or damage before each use, and verify runout with a dial indicator after installation.\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 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\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\u003eLength of Cut\u003c\/strong\u003e: 1-1\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1\/4 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 37 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: ZrN (Zirconium Nitride)\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: Single\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Helix\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChipbreaker\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Reach\u003c\/strong\u003e: No\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: 0.25 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: 315215\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51729453875506,"sku":"315215","price":88.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/fe560888fd4866f75d5b2c1b3d1b1165.jpg?v=1788704811","url":"https:\/\/voomisupply.com\/products\/accupro-315215-ball-end-mill-1-4-in-3-flute-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}