{"product_id":"accupro-311818-square-end-mill-3-4-in-5-flute-carbide","title":"Accupro 311818 Square End Mill 3\/4 in 5 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 311818 is a solid carbide square end mill designed for high-performance metal cutting in CNC milling applications. With a 3\/4-inch mill diameter, a 2-3\/4-inch length of cut, and five spiral flutes, it delivers aggressive material removal rates while maintaining edge stability. The AlTiCrN coating provides heat resistance and wear protection, extending tool life in demanding ferrous and hardened material applications. The 38-degree helix angle promotes efficient chip evacuation, reducing heat buildup at the cutting zone. This is a single-end, right-hand cutting tool built for professional machinists and tool-and-die shops running production or maintenance operations.\u003c\/p\u003e\u003cp\u003eThe 311818 suits horizontal and vertical CNC machining centers as well as manual knee mills where precision slotting, profiling, and peripheral milling are required. Its micrograin carbide substrate supports higher surface speeds and feeds compared to conventional carbide grades. The variable index geometry helps suppress chatter during deep-cavity and side-wall cuts, making it a practical choice for mold work, fixture machining, and general metalworking operations. No extended reach configuration is present on this tool, keeping it rigid for standard-depth work.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e5-flute spiral configuration for high material removal and smooth finish\u003c\/li\u003e\n\u003cli\u003eAlTiCrN coating for elevated heat resistance and extended tool life in ferrous materials\u003c\/li\u003e\n\u003cli\u003e38-degree helix angle promotes positive chip evacuation and reduces cutting forces\u003c\/li\u003e\n\u003cli\u003eVariable index flute spacing reduces harmonic chatter in deep cuts\u003c\/li\u003e\n\u003cli\u003eMicrograin solid carbide substrate supports high surface speeds\u003c\/li\u003e\n\u003cli\u003eCentercutting design allows direct plunge entry\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and standard tooling option for CNC machining centers and manual mills accepting a 3\/4-inch straight shank tool holder or collet.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist following standard toolroom practices. Ensure the machine spindle is fully stopped and locked out before changing tooling. Use a calibrated torque wrench and the appropriate collet or end-mill holder to secure the 3\/4-inch shank; confirm runout with a dial indicator before engaging the workpiece. Do not exceed the tool manufacturer's recommended speeds and feeds for the workpiece material and coating type.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.75 inches (19.05 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 2.75 inches (69.85 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length (OAL)\u003c\/strong\u003e: 5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 38 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\u003c\/strong\u003e: AlTiCrN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Single End\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentercutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Index\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Helix\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\u003eChipbreaker\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: HS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1 pound\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: 311818\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51730474271026,"sku":"311818","price":360.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7aac15e4059b6c0871f11e68287d54ba.jpg?v=1788718102","url":"https:\/\/voomisupply.com\/products\/accupro-311818-square-end-mill-3-4-in-5-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}