Accupro 314657 Square End Mill 5/16 in 3 Flute Carbide

Product Description

The ACCUPRO 314657 is a solid carbide square end mill designed for precise milling operations in metal and non-metallic workpiece materials. Built to stub-length proportions, it features a 5/16 inch cutting diameter, a 13/16 inch length of cut, and a 37-degree helix angle that promotes efficient chip evacuation and smooth cutting action. The micrograin carbide construction delivers edge hardness and wear resistance suited to demanding milling applications. Three flutes provide a balance between chip clearance and cutting edge contact, making this tool a practical choice for slotting, profiling, and peripheral milling in machining center or manual mill setups.

This end mill is used in general-purpose milling applications where a stub-length tool is preferred for rigidity. The 5/16 inch shank diameter matches the cutting diameter, allowing direct installation in standard collets or end mill holders. Right-hand cut and right-hand flute direction are standard for conventional and climb milling on most CNC machining centers and knee mills. The bright, uncoated finish makes it a straightforward choice for aluminum, steel, and similar materials where a coating is not required.

Key Features

• Solid micrograin carbide construction for hardness and edge retention
• 37-degree helix angle promotes efficient chip flow and reduced cutting forces
• 3-flute geometry balances chip clearance with surface finish quality
• Stub length design increases rigidity and reduces deflection in short-reach applications
• Right-hand cut, right-hand spiral flute direction for standard milling operations
• Centercutting capability allows direct plunge entry into the workpiece

Compatibility

Designed for use in standard 5/16 inch collets, end mill holders, and ER-style toolholding systems on CNC machining centers and manual vertical mills.

Installation Notes

Installation should be performed by a qualified machinist following the machine tool manufacturer's toolholding torque and runout specifications. Ensure the shank is fully seated and clean before tightening the holder. Power down and lock out the spindle before changing tooling. Verify spindle speed and feed rate are set appropriately for the workpiece material before engaging the cut.