Accupro 95168254 Square End Mill 1/4 in 4 Flute Carbide Altin

Product Description

The ACCUPRO 95168254 is a solid carbide square end mill designed for high-performance milling in metalworking and machining applications. Built from micrograin carbide and finished with an AlTiN coating, it handles demanding cuts in ferrous and hardened materials where heat resistance and edge retention matter. The 1/4 inch diameter tool features 4 flutes with a variable helix geometry that reduces harmonic vibration and improves chip evacuation during aggressive cutting passes. With a 3/8 inch length of cut and 2 inch overall length, this stub-length design provides rigidity in tight-clearance setups. Installation and use are performed by machinists and CNC operators in job shop or production environments.

This end mill is suited for milling slots, profiles, and pockets in steel, stainless steel, cast iron, and similar hard materials. The variable helix flute geometry helps minimize chatter on longer cuts and in thin-wall workpiece scenarios. The stub-length configuration keeps deflection low, making it a practical choice for high-feed or high-speed machining strategies on vertical and horizontal CNC machining centers as well as manual knee mills. Right-hand cutting and right-hand flute direction are standard for conventional spindle setups.

Key Features

• Solid micrograin carbide construction for superior wear resistance and edge sharpness
• AlTiN coating improves heat resistance and extends tool life in ferrous materials
• Variable helix flutes reduce vibration and chatter during aggressive milling
• 4 flutes with spiral flute type for efficient chip removal
• Centercutting design allows plunge entry into workpieces
• Stub length of cut provides added rigidity in close-clearance applications

Compatibility

Designed as an OEM-style replacement and standard-fitment cutting tool compatible with 1/4 inch straight shank tool holders, collet chucks, and ER-style collets used on CNC and manual milling machines.

Installation Notes

Installation is performed by a machinist or CNC operator. Ensure the machine spindle is fully stopped and locked out before changing tooling. Seat the 1/4 inch shank fully into the collet or tool holder and torque the retention nut to the tool holder manufacturer specification. Inspect the cutting edges for chips or damage before each use, and verify runout with a dial indicator when tolerances are critical.