Accupro 314651 Square End Mill 5/16 in 3 Flute Carbide

Product Description

The ACCUPRO 314651 is a solid carbide square end mill designed for precision milling operations in ferrous and non-ferrous materials. With a 5/16-inch mill diameter, a 1/2-inch length of cut, and a 37-degree helix angle, this tool delivers efficient chip evacuation and clean peripheral cuts. The micrograin carbide substrate provides hardness and wear resistance suited to demanding production environments. The bright/uncoated finish makes it a straightforward choice for general-purpose applications where coating is not required. Machinists and toolroom technicians install this end mill in CNC machining centers and manual knee mills.

This end mill is suited for slotting, profiling, and peripheral milling in both production and toolroom settings. The 3-flute geometry balances chip clearance with cutting stability, making it effective in aluminum, brass, plastics, and softer steels. The 5/16-inch shank diameter matches the mill diameter for direct clamping in standard collets or end mill holders. With a 2-1/2-inch overall length and no extended reach, it fits standard short-reach applications where rigidity is a priority.

Key Features

• 5/16-inch mill diameter with a tight tolerance of +0.000 / -0.005 inches for accurate sizing
• 37-degree helix angle promotes smooth cutting action and effective chip evacuation
• 3-flute spiral flute design balances material removal rate with chip clearance
• Micrograin solid carbide construction for hardness and extended tool life
• Center-cutting capable, allowing plunge entry into workpiece material
• Right-hand cut and right-hand flute direction for standard spindle operation
• Bright/uncoated finish suitable for general-purpose milling without coating requirements

Compatibility

Designed for use in CNC machining centers and manual mills equipped with standard collet systems or end mill holders accepting a 5/16-inch shank diameter.

Installation Notes

Installation should be performed by a qualified machinist following standard toolholding procedures. Ensure the machine spindle is fully stopped and locked out before inserting or removing the end mill. Use a properly sized collet or end mill holder and tighten to the tool holder manufacturer's recommended procedure. Inspect the cutting edges and shank for chips or runout before engaging the workpiece.