Promax 108-02216 Square End Mill 11/32 in 2 Flute Carbide

Product Description

The PROMAX 108-02216 is a solid carbide square end mill designed for precise milling operations in metal, composites, and engineered plastics. It features a 11/32 inch (0.3438 inch) cutting diameter, a 1 inch length of cut, and a 40-degree helix angle that promotes efficient chip evacuation and smooth surface finishes. The ZrN (zirconium nitride) coating improves wear resistance and reduces heat buildup during aggressive cuts. At 0.12 pounds, this is a single-end, center-cutting tool suited for machinists and tool-and-die professionals running CNC mills or manual knee mills.

This end mill is appropriate for general-purpose slot milling, peripheral milling, and plunge cutting in light to medium-duty applications. The 3/8 inch shank diameter fits standard collet systems commonly found in vertical machining centers and manual mills. The right-hand cut and right-hand spiral flute geometry is the standard configuration for most CNC and manual milling setups. Series 108 tooling from PROMAX is intended for production and maintenance machining environments where consistent dimensional accuracy is required.

Key Features

• Solid micrograin carbide construction for extended tool life and dimensional stability
• ZrN coating reduces friction and resists wear in dry or minimal-lubrication cutting conditions
• 40-degree helix angle promotes chip flow and reduces cutting forces
• Center-cutting design allows direct plunge entry without a pre-drilled pilot hole
• Right-hand cut and right-hand flute geometry matches standard spindle rotation
• Mill diameter tolerance of +0.000 / -0.002 inch ensures close-tolerance slot and profile work

Compatibility

Designed for use in standard 3/8 inch collet or end mill holder systems on CNC vertical machining centers and manual milling machines. Part of the PROMAX Series 108 end mill line.

Installation Notes

Installation should be performed by a qualified machinist. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Seat the shank fully in the collet or holder to the manufacturer-recommended engagement depth and torque the retention hardware per the machine tool builder specifications. Inspect the cutting edges and coating for chips or wear before each use.