Promax US556174 Square End Mill 5/8 in 5 Flute Carbide

Product Description

The PROMAX US556174 is a solid carbide square end mill designed for high-performance milling in demanding machining environments. It features a 5/8-inch cutting diameter, five flutes, and a 38-degree helix angle that promotes efficient chip evacuation and smooth cutting action. The PowerLayer coating extends tool life in abrasive materials by reducing heat and wear at the cutting edge. At 3 inches overall length with a 3/4-inch length of cut, this single-end tool is built for standard-length milling applications across a wide range of ferrous and non-ferrous workpiece materials. The micrograin carbide substrate provides the edge strength needed for aggressive feed rates.

This end mill suits CNC machining centers and manual mills in job shops, production facilities, and toolrooms. It is appropriate for slotting, peripheral milling, and profiling operations on steel, aluminum, and similar materials. The variable index flute spacing reduces harmonic vibration during cutting, which is especially useful in longer cuts and harder workpiece materials. The straight cylindrical shank is compatible with standard ER collets, end mill holders, and Weldon-style chucks commonly found in vertical and horizontal machining setups.

Key Features

• 5/8-inch cutting diameter with a mill diameter tolerance of +0.000 / -0.002 inches for consistent fit and finish
• Five-flute geometry increases chip load capacity and improves surface finish compared to four-flute designs
• 38-degree right-hand helix promotes chip evacuation and reduces cutting forces
• PowerLayer coating improves heat resistance and extends tool life in abrasive materials
• Variable index flute spacing reduces vibration and chatter during milling
• Micrograin solid carbide substrate delivers edge strength for demanding cut conditions
• Center-cutting design allows plunge entry into workpieces

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide end mill in the PROMAX US556 series. Compatible with standard 5/8-inch end mill holders, ER collet chucks, and Weldon-style toolholders on CNC and manual milling machines.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully stopped and locked out before changing tooling. Verify collet or holder bore cleanliness and proper runout before tightening to avoid premature tool wear or breakage. Follow the machine manufacturer and toolholder manufacturer torque guidelines when securing the shank.