Promax 191-33234 End Mill 1/2 in 4 Flute Altin Solid Carbide

Product Description

The PROMAX 191-33234 is a roughing and finishing end mill designed for high-performance material removal in machining operations. Built from solid carbide with an AlTiN (aluminum titanium nitride) coating, it handles demanding cutting applications where heat resistance and tool life are critical. The 1/2 inch diameter tool features four flutes and a 0.02 inch corner radius, making it suited for both roughing passes and finish cuts on ferrous and non-ferrous metals. It is centercutting, allowing plunge entry. Machinists and CNC operators in job shops, manufacturing facilities, and production environments rely on this tool for consistent material removal rates and surface finish quality.

This end mill is used in vertical machining centers, CNC mills, and manual knee mills where a 1/2 inch shank toolholder is available. It is appropriate for milling steel, stainless, cast iron, and other hard materials where an AlTiN coating provides thermal protection at elevated spindle speeds. The corner radius geometry reduces edge chipping and improves surface finish on part profiles and pockets. With a 2 inch length of cut and 4 inch overall length, it reaches moderate-depth features without excessive overhang.

Key Features

• Solid carbide construction for rigidity and wear resistance in demanding cutting conditions
• AlTiN coating for high heat resistance and extended tool life in ferrous materials
• 0.02 inch corner radius reduces edge stress and improves surface finish on profiled cuts
• Centercutting design allows direct plunge entry without pre-drilling
• Four flutes balance chip evacuation and surface finish on roughing and finishing passes
• Series 191 designation for consistent replacement and tooling standardization

Compatibility

Designed as an OEM-style replacement and standard tooling option for 1/2 inch shank ER collet chucks, end mill holders, and side-lock holders used in CNC vertical machining centers and manual mills.

Installation Notes

Installation should be performed by a qualified machinist following standard toolroom practices. Ensure the spindle is fully stopped and machine power is off before changing tooling. Seat the shank fully into the toolholder and torque the retention mechanism per the toolholder manufacturer specification. Verify runout with a dial test indicator before beginning production cuts.