Accupro 314690 Square End Mill 5/16 in 3 Flute Carbide

Product Description

The ACCUPRO 314690 is a solid carbide square end mill designed for precision milling operations across a range of ferrous and non-ferrous materials. It features a 5/16 inch cutting diameter, a 2-1/8 inch length of cut, and a 3-flute spiral geometry with a 37-degree helix angle. The micrograin carbide substrate provides edge retention and rigidity suited to demanding stock removal and finishing passes. This is a single-end, right-hand cutting tool with a bright/uncoated finish, making it a straightforward workhorse for general-purpose milling applications.

This end mill is used in vertical machining centers, knee mills, and CNC milling setups where extended reach into a workpiece is required. The 2-1/8 inch length of cut supports deeper slot and pocket operations without requiring a tool change. At 4 inches overall length and a 5/16 inch shank diameter, it mounts directly into standard collets and end mill holders. Machinists and tool-and-die professionals working with steel, aluminum, brass, and similar materials will find this a practical general-purpose selection.

Key Features

• Solid micrograin carbide construction for rigidity and edge retention
• 3-flute, right-hand spiral design promotes efficient chip evacuation
• 37-degree helix angle balances cutting forces across a wide material range
• Center-cutting capable, allowing plunge entry into workpiece
• Bright/uncoated finish for compatibility with a broad range of materials including aluminum and non-ferrous metals
• Matched shank and cutting diameter at 5/16 inch for direct collet mounting

Compatibility

Designed as a general-purpose square end mill for use in standard collet chucks and end mill holders accepting a 5/16 inch shank diameter on vertical machining centers and manual mills.

Installation Notes

Installation is performed by machinists or machine operators using an appropriate collet or end mill holder rated for the 5/16 inch shank. Confirm that the spindle and toolholder are clean and free of debris before seating the shank. Torque the retention mechanism per the toolholder manufacturer specifications. Set spindle speed and feed rate according to the workpiece material and depth of cut before engaging the cutter.