Promax 155-03214 Square End Mill 0.5in 4 Flute Carbide

Product Description

The PROMAX 155-03214 is a solid carbide square end mill designed for precision milling in metalworking and machining applications. Built from micrograin carbide and coated with an AlTiN (Aluminum Titanium Nitride) finish, it delivers hardness and heat resistance in demanding cuts. The 4-flute, right-hand spiral design provides efficient chip evacuation and a clean surface finish. With a 0.5 inch cutting diameter, 1 inch length of cut, and 3 inch overall length, this end mill is well suited for slotting, profiling, and peripheral milling on CNC machining centers and manual knee mills. It is installed and operated by machinists and tool and die professionals.

This end mill is used in general-purpose milling of ferrous and non-ferrous metals, including steel alloys and cast iron, where a sharp, rigid cutting edge is required. The 35-degree helix angle promotes smooth cutting action and reduced vibration. The 0.5 inch shank diameter fits standard ER and side-lock toolholders common in production and job shop environments. It is suitable for both roughing and semi-finishing operations in light to moderate stock removal passes.

Key Features

• Solid micrograin carbide construction for rigidity and wear resistance
• AlTiN coating for elevated heat resistance in high-speed milling
• 4-flute, right-hand spiral flute geometry for efficient chip removal
• 35-degree helix angle reduces cutting forces and vibration
• 0.5 inch diameter with a mill diameter tolerance of +0.000 / -0.002 inches
• Non-center-cutting design - not intended for plunge entry

Compatibility

Designed as a standard shank square end mill compatible with 0.5 inch ER collet chucks, side-lock holders, and milling chucks used in CNC machining centers and manual milling machines.

Installation Notes

Installation is performed by a machinist using the appropriate toolholder for the 0.5 inch shank. Ensure the machine spindle is fully stopped and locked out before changing tooling. Seat the shank to the full recommended engagement depth in the toolholder to minimize runout. This end mill is non-center-cutting and should not be used for direct plunge milling without a pre-drilled entry hole.