Promax 155-01414 Square End Mill 7/32 in 4 Flute Carbide

Product Description

The PROMAX 155-01414 is a 4-flute solid carbide square end mill designed for high-performance milling in ferrous and non-ferrous materials. Built from micrograin carbide stock and coated with AlTiN (aluminum titanium nitride), it handles elevated cutting temperatures without sacrificing edge integrity. The 40-degree helix angle promotes efficient chip evacuation and smooth cutting action. At 7/32 inch (0.2188 inch) in diameter with a 3/4-inch length of cut and a 2-1/2-inch overall length, this is a compact, precision tool suited for tight-tolerance slotting, profiling, and peripheral milling operations. Installation and use require a qualified machinist or tooling technician.

This end mill is intended for use in CNC machining centers and manual milling machines where a 1/4-inch shank diameter collet or end mill holder is available. The right-hand cut, right-hand spiral flute configuration suits conventional and climb milling on steel, stainless, cast iron, titanium, and similar materials. The AlTiN coating extends tool life at higher surface footage and reduces the need for flood coolant in many dry or minimum-quantity lubrication setups. Series 155 represents a regular-length geometry, keeping deflection low in standard-depth applications.

Key Features

• Solid micrograin carbide construction for rigidity and wear resistance
• AlTiN finish for high-heat resistance and extended tool life
• 40-degree helix angle for efficient chip evacuation and reduced cutting force
• 4-flute design for improved surface finish on finishing passes
• Right-hand cut and right-hand flute for standard CNC and manual mill spindle use
• Spiral flute geometry with no chipbreaker for smooth continuous cuts

Compatibility

Designed as an OEM-style replacement or direct-use end mill for any milling machine or machining center equipped with a 1/4-inch shank collet, end mill holder, or compatible tooling chuck.

Installation Notes

Installation should be performed by a qualified machinist. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Seat the shank fully in the collet or holder to the recommended grip length and torque the retention mechanism per machine manufacturer specifications. Confirm runout with a dial indicator before initiating cuts, particularly for tight-tolerance work.