{"product_id":"accupro-12178864-square-end-mill-3-8-inch-2-flute-carbide","title":"Accupro 12178864 Square End Mill 3\/8 Inch 2 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 12178864 is a solid carbide square end mill designed for precision milling operations in metal, alloy, and composite materials. It features a 3\/8 inch cutting diameter, a 3 inch length of cut, and a 6 inch overall length. The micrograin carbide construction provides hardness and wear resistance needed for demanding cutting conditions. A 40-degree helix angle combined with a spiral flute geometry promotes efficient chip evacuation and stable cutting performance. The nACRo finish adds a hard, low-friction coating layer that extends tool life in abrasive or high-temperature applications. This tool is installed and operated by machinists and CNC setup technicians in production and job-shop environments.\u003c\/p\u003e\u003cp\u003eThis end mill is suited for general-purpose and high-performance milling on vertical and horizontal machining centers. The centercutting design allows plunge entry directly into the workpiece, enabling slot milling, pocket milling, and ramping operations. The right-hand cut and right-hand flute configuration match standard spindle rotation. With a 3\/8 inch shank diameter matching the cutting diameter, it seats directly into standard ER collets, end mill holders, or shrink-fit toolholders of the same bore size.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid micrograin carbide construction for rigidity and wear resistance\u003c\/li\u003e\n\u003cli\u003enACRo finish coating for extended tool life in abrasive cutting conditions\u003c\/li\u003e\n\u003cli\u003e40-degree helix angle promotes aggressive chip evacuation and smooth cutting action\u003c\/li\u003e\n\u003cli\u003eCentercutting geometry allows direct plunge entry for slot and pocket milling\u003c\/li\u003e\n\u003cli\u003e2-flute design provides chip clearance in softer metals and gummy alloys\u003c\/li\u003e\n\u003cli\u003eRight-hand cut and right-hand flute for standard CNC spindle compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard 3\/8 inch shank solid carbide square end mill compatible with ER collet chucks, end mill holders, and shrink-fit toolholders bored to 3\/8 inch.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by a machinist or CNC technician. Power down and lock out the machine spindle before loading or changing the tool. Seat the shank fully into the toolholder to the minimum engagement depth recommended by the holder manufacturer, and torque the retention mechanism according to the toolholder specification. Inspect the cutting edges for chips or damage before each use; carbide is brittle and should never be used if edge integrity is compromised.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 3\/8 inch (0.3750 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\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\u003eLength of Cut\u003c\/strong\u003e: 3 inches (3.0000 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6 inches (6.0000 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/8 inch (0.3750 inches)\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\u003eFinish\u003c\/strong\u003e: nACRo\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\u003ePackage Dimensions\u003c\/strong\u003e: 3.75 x 0.75 x 0.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.25 pounds\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: 12178864\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51729189601586,"sku":"12178864","price":183.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e5e0db57dc016c6453b0eb12067c5293_fb1c9c36-679e-4282-9e98-4baf7dae4807.jpg?v=1788701675","url":"https:\/\/voomisupply.com\/products\/accupro-12178864-square-end-mill-3-8-inch-2-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}