Promax 155-04014 Square End Mill 5/8 Inch 4 Flute Altin Carbide

Product Description

The PROMAX 155-04014 is a solid carbide square end mill designed for high-performance milling in metalworking applications. It features a 5/8-inch cutting diameter with a 1-1/4-inch length of cut, a matching 5/8-inch shank, and a 3-1/2-inch overall length. The tool carries an AlTiN (aluminum titanium nitride) coating, which improves heat resistance and extends tool life in ferrous and hardened materials. With 4 spiral flutes, a 35-degree helix angle, and a right-hand cut with right-hand flute direction, this end mill is built for efficient chip evacuation and smooth surface finishes in production and job-shop environments.

This end mill is suited for milling steel, stainless steel, cast iron, and other hard metals where thermal resistance is a priority. The Series 155 designation places it in a standard-reach, regular-length category, making it appropriate for conventional vertical and horizontal milling machines, CNC machining centers, and manual knee mills. It is a single-end tool with a square shank and is not center-cutting, so it is not intended for plunge cuts. Machinists and tool-and-die professionals working in production shops and maintenance environments will find this a direct fit for slotting, side milling, and profiling operations.

Key Features

• Solid carbide micrograin substrate for rigidity and wear resistance in hard materials
• AlTiN coating provides high-temperature oxidation resistance, extending tool life in dry or minimal-lubrication cutting
• 4 spiral flutes with 35-degree helix angle for efficient chip evacuation and reduced cutting forces
• Right-hand cut, right-hand flute direction - standard orientation for most CNC and manual milling setups
• Mill diameter tolerance of +0.000 / -0.002 inches ensures consistent fit and dimensional accuracy
• Non-center-cutting design - suitable for peripheral and side milling, slotting, and profiling

Compatibility

Designed as a standard-shank replacement or direct-use solid carbide end mill compatible with 5/8-inch collets and end-mill holders on CNC machining centers and conventional milling machines.

Installation Notes

Installation should be performed by a qualified machinist following the machine tool manufacturer's toolholding specifications. Secure the 5/8-inch shank in a properly sized collet or end-mill holder, ensuring full engagement and correct runout before operation. Power down and lock out the spindle before tool changes. Do not use this tool for plunge cuts, as it is a non-center-cutting design.