Accupro 313091 Square End Mill 9/32 in 2 Flute Carbide

Product Description

The ACCUPRO 313091 is a solid carbide square end mill designed for precision milling in metalworking and machining applications. With a 9/32 inch (0.2813 inch) cutting diameter and a 13/16 inch (0.8125 inch) length of cut, this tool delivers accurate square-shoulder and slot milling in a compact stub-length profile. The 45-degree helix angle promotes efficient chip evacuation and smooth cutting action. Manufactured from micrograin solid carbide, it holds tight tolerances and performs well in harder workpiece materials. The bright uncoated finish makes it suitable for non-ferrous metals and general-purpose milling. Machinists and CNC operators working in job shops, toolrooms, and production environments are the primary users.

This end mill is suited for light to medium slotting, profiling, and contouring operations on milling machines and CNC machining centers. The stub length profile provides added rigidity in setups where tool deflection is a concern. The right-hand cut and right-hand spiral flutes are standard for conventional milling machine spindles. The 5/16 inch shank diameter fits standard collets and end mill holders commonly found in benchtop and full-size vertical machining centers.

Key Features

• Micrograin solid carbide construction for wear resistance and dimensional stability
• 45-degree helix angle for efficient chip flow and reduced cutting forces
• Center-cutting design allows plunge entry into workpieces
• Stub length profile increases rigidity and reduces deflection
• Right-hand cut and right-hand flute direction for standard spindle use
• Bright uncoated finish suitable for non-ferrous and general-purpose materials

Compatibility

Designed as a direct-fit replacement or standard addition for CNC machining centers and manual mills using 5/16 inch collets or end mill holders accepting a 0.3125 inch shank diameter.

Installation Notes

Installation should be performed by a qualified machinist following shop safety procedures. Ensure the machine spindle is fully stopped and locked out before inserting or removing the end mill from its holder. Verify collet size matches the 5/16 inch shank and that the tool is seated to the correct projection length before tightening. Do not exceed the recommended depth of cut or feed rate for the workpiece material and machine setup.