Accupro 2500229 Square End Mill 1/4in 3 Flute Carbide Zrn

Product Description

The ACCUPRO 2500229 is a solid carbide square end mill designed for precision milling in metalworking and machining applications. Built from micrograin carbide stock, it offers a 1/4 inch cutting diameter with a 3/8 inch length of cut and a 2.5 inch overall length. The ZrN (zirconium nitride) coating reduces friction and extends tool life during high-speed cutting operations. A variable helix geometry helps break up harmonic chatter, improving surface finish and cutting stability. This is a single-end, centercutting tool with a right-hand cut and right-hand flute spiral, suited for machinists running milling machines or machining centers in job shops and production environments.

This end mill fits stub-length applications where rigidity matters more than reach. The 1/4 inch shank diameter matches the 1/4 inch cutting diameter, making it compatible with standard 1/4 inch collets and end mill holders. Its three-flute design balances chip evacuation with cutting edge strength, making it a practical choice for profiling, slotting, and light pocketing in ferrous and non-ferrous materials where a ZrN-coated micrograin carbide tool is appropriate.

Key Features

• Solid micrograin carbide construction for rigidity and wear resistance
• ZrN coating reduces friction and extends tool life in compatible materials
• Variable helix design minimizes chatter and improves surface finish
• Centercutting geometry allows plunge entry into workpiece
• Right-hand cut and right-hand spiral flute configuration
• Stub length for maximum rigidity in short-reach setups

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide end mill for standard 1/4 inch collet chucks and end mill holders used on vertical and horizontal milling machines and CNC machining centers.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Ensure the machine spindle is fully powered down and locked out before loading or changing tooling. Seat the shank fully into the collet or tool holder and torque the retention mechanism to the tool holder specification. Inspect the cutting edges and coating condition before each use and replace tooling that shows visible chipping or wear.