{"product_id":"accupro-12179039-square-end-mill-3-4-in-4-flute-solid-carbide","title":"Accupro 12179039 Square End Mill 3\/4 in 4 Flute Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 12179039 is a solid carbide square end mill designed for high-performance milling in ferrous and non-ferrous materials. It features a 3\/4 inch cutting diameter with a 2-1\/4 inch length of cut, making it well-suited for moderate-depth slot milling, profiling, and peripheral milling operations. The 4-flute spiral configuration with a 40-degree helix angle promotes efficient chip evacuation while maintaining a strong cutting edge. The nACRo coating provides enhanced wear resistance and thermal stability at elevated cutting speeds. This end mill is centercutting, allowing it to plunge directly into a workpiece. Machinists and CNC operators working in job shops, production machining, and toolroom environments are the primary users.\u003c\/p\u003e\u003cp\u003eThis end mill is intended for use in vertical and horizontal milling machines, CNC machining centers, and manual mills. The right-hand cut and right-hand flute configuration make it compatible with standard spindle setups. The micrograin carbide substrate supports tighter tolerances and longer tool life compared to standard grain carbide. Typical applications include slot milling, contouring, face milling, and plunge operations where a rigid, general-purpose end mill is required. The 3\/4 inch shank diameter fits standard ER collets, end mill holders, and Weldon-style toolholders commonly found in production and toolroom environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid micrograin carbide construction for extended tool life and dimensional accuracy\u003c\/li\u003e\n\u003cli\u003enACRo coating for improved wear resistance and heat resistance at higher feed rates\u003c\/li\u003e\n\u003cli\u003e40-degree helix angle promotes smooth cutting action and efficient chip flow\u003c\/li\u003e\n\u003cli\u003e4-flute spiral design balances material removal rate with surface finish quality\u003c\/li\u003e\n\u003cli\u003eCentercutting capable — supports direct plunge entry without a pre-drilled pilot hole\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, right-hand flute — compatible with standard CNC and manual spindle configurations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a general-purpose OEM-style solid carbide square end mill for use in standard 3\/4 inch end mill holders, ER collet chucks, and Weldon-style toolholders across CNC machining centers and manual milling machines.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified machinists or CNC setup technicians. Ensure the machine spindle is fully stopped and the tool changer or spindle is locked before mounting or removing the end mill. Seat the shank fully into the toolholder to the recommended engagement depth before torquing the set screw or clamping the collet. Verify runout at the tool tip with a dial indicator before beginning a production cut, as excessive runout accelerates tool wear and degrades surface finish.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\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: 2-1\/4 inch (2.25 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/4 inch (0.7500 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\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\/Finish\u003c\/strong\u003e: nACRo\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 40 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\u003eCentercutting\u003c\/strong\u003e: Yes\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\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: 12179039\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51727518990642,"sku":"12179039","price":403.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5bcc8b4ee7b2568a0ee793453639dd12.jpg?v=1788678813","url":"https:\/\/voomisupply.com\/products\/accupro-12179039-square-end-mill-3-4-in-4-flute-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}