Promax 109-03234 Square End Mill 1/2 in 3 Flute Carbide

Product Description

The PROMAX 109-03234 is a solid carbide square end mill designed for precision milling operations in metal fabrication and machining environments. Built from micrograin carbide with an AlTiN finish, it delivers high heat resistance and extended tool life in ferrous and hardened materials. The 1/2-inch diameter cutter features a 35-degree helix angle, three spiral flutes, and a right-hand cut with right-hand flute orientation. At 3-1/2 inches overall length with a 1-1/2-inch length of cut, it suits a wide range of profiling, slotting, and side milling tasks. This tool is installed and operated by machinists and CNC machine operators working in job shops, toolrooms, and production facilities.

This end mill is suited for use in vertical machining centers, CNC mills, and manual knee mills where a 1/2-inch straight shank is accepted. Its centercutting geometry allows plunge cuts in addition to standard peripheral and face milling. The AlTiN coating makes it particularly effective in dry or near-dry machining of alloy steels, stainless steels, cast iron, and similar hard materials at elevated cutting speeds. The Series 109 designation identifies it within the PROMAX extended-reach and standard-reach carbide end mill family.

Key Features

• Solid micrograin carbide construction for rigidity and wear resistance
• AlTiN coating provides high-temperature oxidation resistance for dry machining
• 35-degree helix angle promotes efficient chip evacuation and smooth cutting action
• Centercutting design allows direct plunge entry into workpiece
• Right-hand cut, right-hand flute configuration compatible with standard spindle rotation
• Mill diameter tolerance of plus 0.000 / minus 0.002 inches for close-tolerance work

Compatibility

Designed as a direct-fit tool for any milling machine or machining center accepting a 1/2-inch straight square shank, with a shank diameter tolerance of minus 0.0001 to minus 0.0004 inches for secure collet or end-mill-holder engagement.

Installation Notes

Installation is performed by a qualified machinist or CNC operator. Secure the shank fully within a collet, shrink-fit holder, or end mill holder before spindle engagement, and verify runout before cutting. Power down the machine spindle completely before changing or adjusting tooling. Follow the machine manufacturer and tooling manufacturer feed-and-speed recommendations for the specific workpiece material to avoid premature tool wear or breakage.