Promax 100-01622 Roughing End Mill 1/4 in 4 Flute Carbide

Product Description

The PROMAX 100-01622 is a single-end roughing end mill designed for aggressive material removal in milling operations. Built from solid carbide with a TiCN (titanium carbonitride) coating, it delivers hardness and heat resistance well suited to production environments. The 1/4 inch diameter cutter runs 4 flutes in a coarse-pitch configuration with a 30-degree maximum helix angle, enabling fast chip evacuation and reduced chatter during heavy cuts. This tool is center-cutting, so it can plunge directly into material without a pre-drilled entry point. Machinists and toolroom professionals install this end mill for roughing passes where stock removal rate matters more than surface finish.

This end mill is intended for use in CNC machining centers, knee mills, and manual milling machines where a 1/4 inch shank is appropriate. The coarse pitch is particularly effective when cutting softer steels, aluminum, and similar materials at higher feed rates. With a 3/8 inch length of cut and 2 inch overall length, it fits compact workholding setups and close-quarter milling situations. Right-hand cutting and right-hand flute direction are standard for conventional spindle rotation.

Key Features

• Solid carbide construction for rigidity and wear resistance
• TiCN coating improves surface hardness and reduces friction during cutting
• Coarse pitch, 4-flute design promotes aggressive chip evacuation
• Center-cutting geometry allows direct plunge entry
• 30-degree maximum helix angle balances cutting action and stability
• Right-hand cut and right-hand flute direction for standard spindle setups

Compatibility

Designed as a standard 1/4 inch shank roughing end mill compatible with collet chucks, end mill holders, and other 1/4 inch tool-holding systems used in CNC and manual milling equipment.

Installation Notes

End mills are installed by a machinist or toolroom technician using an appropriate collet or end mill holder rated for the shank diameter. Power down and lock out the spindle before changing tooling. Verify runout after seating the tool in the holder, and confirm shank engagement depth meets the holder manufacturer's minimum specification. Shank diameter tolerance on this tool is -0.0001 to -0.0004 inches, so select a collet size accordingly.