{"product_id":"accupro-315938-ball-end-mill-3-4-in-3-flute-solid-carbide","title":"Accupro 315938 Ball End Mill 3\/4 in 3 Flute Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ACCUPRO 315938 is a single-end ball end mill designed for machining contoured surfaces, cavities, and complex 3D profiles in a wide range of workpiece materials. Built from micrograin solid carbide and finished with a ZrN (zirconium nitride) coating, this tool delivers improved hardness and wear resistance compared to uncoated carbide. The 3\/4 inch cutting diameter pairs with a 1 inch length of cut and a 37-degree right-hand helix to promote aggressive chip evacuation while maintaining surface finish quality. Three spiral flutes provide a balance between cutting strength and chip clearance. With an extended reach configuration and a 2.5 inch reach length, this mill is well suited to deep-pocket and contour work where tool-to-workpiece clearance is limited.\u003c\/p\u003e\n\u003cp\u003eThis end mill is intended for use in CNC machining centers and manual knee mills where precision profile milling, pocket finishing, and die-and-mold operations are performed. The 3\/4 inch shank diameter is compatible with standard ER collet chucks, end mill holders, and shrink-fit tooling systems. It is appropriate for ferrous and non-ferrous applications where a ZrN coating provides the necessary thermal barrier and release properties. The extended reach geometry makes it a practical choice for aerospace, mold making, and general precision machining operations requiring access to deep features.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eMicrograin solid carbide construction for rigidity and edge retention\u003c\/li\u003e\n  \u003cli\u003eZrN coating improves wear resistance and reduces built-up edge\u003c\/li\u003e\n  \u003cli\u003e37-degree right-hand helix spiral flutes for efficient chip evacuation\u003c\/li\u003e\n  \u003cli\u003eExtended reach design with 2.5 inch reach length for deep-feature access\u003c\/li\u003e\n  \u003cli\u003e3\/4 inch shank matches cutting diameter for direct toolholder compatibility\u003c\/li\u003e\n  \u003cli\u003eSingle-end configuration with tight mill diameter tolerance of +0.000 \/ -0.002 inch\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style cutting tool for use in standard 3\/4 inch end mill holders, ER collet chucks, and shrink-fit tooling systems on CNC machining centers accepting 3\/4 inch shank tooling.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist or toolroom technician. Ensure the machine spindle is fully powered down and at rest before loading or unloading the tool. Verify the holder bore and collet are clean and free of chips before seating the shank; contaminants will affect runout and tool life. Follow the toolholder manufacturer's torque specifications when tightening set screws or collet nuts, and confirm runout at the cutting end before beginning a production cut.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 3\/4 inch (0.7500 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 1 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\u003eOverall Length\u003c\/strong\u003e: 5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/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\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\u003eExtended Reach\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReach Length\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: +0.000 \/ -0.002 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: +0.0001 \/ -0.0004 inch\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\u003eWeight\u003c\/strong\u003e: 0.75 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27112803\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: 315938\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51750481592626,"sku":"315938","price":455.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1a28647192458434fc24c598ceee122b.jpg?v=1788915785","url":"https:\/\/voomisupply.com\/products\/accupro-315938-ball-end-mill-3-4-in-3-flute-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}