Accupro 14788443 Square End Mill 3 Flute 5/16 in Solid Carbide

Product Description

The ACCUPRO 14788443 is a 3-flute solid carbide square end mill designed for precise material removal in milling applications. With a mill diameter of 0.313 inches (5/16 inch) and a helical flute geometry, this tool delivers clean cuts and efficient chip evacuation in ferrous and non-ferrous materials. The centercutting design allows for direct plunge entry into workpieces, adding versatility to standard peripheral milling operations. A cylindrical shank provides secure toolholder engagement, and the all-carbide construction offers the rigidity and wear resistance required for production environments.

This end mill is suited for use in vertical machining centers, CNC mills, and manual knee mills where a 5/16-inch diameter tool is required. Typical applications include slotting, profiling, and pocketing operations in steel, aluminum, and similar materials. The 1-inch length of cut accommodates moderate-depth passes, while the 4-inch overall length gives clearance for standard fixturing. Machinists and tool-and-die professionals will find this tool appropriate for both roughing and finishing passes at this diameter.

Key Features

• Centercutting geometry enables direct plunge milling without a pre-drilled entry hole
• Helical flute design promotes smooth chip flow and reduced cutting forces
• Solid carbide construction provides superior hardness and thermal resistance versus HSS
• 3-flute configuration balances chip clearance and tool strength for this diameter
• Cylindrical shank compatible with standard collet chucks and end mill holders
• No chipbreaker for clean, continuous cuts on finishing passes

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide end mill for standard 5/16-inch collet chucks and end mill holders used in CNC and manual milling applications.

Installation Notes

Installation should be performed by a qualified machinist following shop safety protocols. Ensure the spindle is fully stopped and the machine is in a locked-out, de-energized state before changing tooling. Secure the cylindrical shank in a clean, properly sized collet or end mill holder to the torque specifications of the toolholder manufacturer. Inspect the cutting edges for chips or damage before each use.