Accupro 12182228 Square End Mill 5/8 in 3 Flute Carbide

Product Description

The ACCUPRO 12182228 is a solid carbide square end mill engineered for demanding material removal in professional machining environments. With a 5/8-inch cutting diameter and 2-1/8-inch length of cut, it handles deep-reach milling passes in a single setup. The three-flute, 40-degree helix spiral flute geometry promotes efficient chip evacuation while maintaining rigidity. An AlTiN (aluminum titanium nitride) coating increases surface hardness and thermal resistance, extending tool life in abrasive and hard materials. Centercutting capability allows plunge entry without a pre-drilled pilot hole. This end mill is installed and operated by machinists and tool-and-die professionals on CNC mills and manual knee mills.

The 12182228 is suited for slotting, pocketing, profiling, and ramping operations in ferrous and non-ferrous materials. The long-length designation provides extended reach for deep-cavity work while the 5/8-inch shank diameter ensures a secure fit in standard ER or end mill holders. Right-hand cut and right-hand flute orientation is standard for conventional CNC spindle rotation. The micrograin carbide substrate supports higher feed rates and finer surface finishes compared to standard carbide grades.

Key Features

• 5/8-inch cutting diameter with +0.000/-0.002-inch mill diameter tolerance for close-tolerance work
• 40-degree helix angle improves chip flow and reduces cutting forces
• AlTiN coating provides thermal protection and extended tool life in hard materials
• Centercutting design allows direct plunge milling without a pilot hole
• Micrograin solid carbide substrate for increased rigidity and wear resistance
• Long-length classification with 2-1/8-inch length of cut for deep-reach applications

Compatibility

Designed for use in standard 5/8-inch end mill holders, ER collet chucks, and Weldon-style holders on CNC machining centers and manual mills with right-hand spindle rotation.

Installation Notes

Installation and tool changes must be performed with the machine spindle stopped and locked. Ensure the holder bore and shank are clean and free of chips before seating. Torque the set screw or collet nut according to the toolholder manufacturer specifications. Verify runout with a dial indicator before initiating a cut to prevent premature tool failure.