Accupro 315629 Square End Mill 3/4 in 3 Flute Solid Carbide Zrn

Product Description

The ACCUPRO 315629 is a solid carbide square end mill designed for precision milling operations in metal cutting and general machining applications. It features a 3/4 inch cutting diameter, a 1 inch length of cut, and a 4 inch overall length. The three-flute spiral geometry with a 37-degree helix angle promotes efficient chip evacuation and smooth cutting action. A ZrN (zirconium nitride) coating reduces friction and extends tool life in demanding materials. Micrograin carbide substrate adds toughness and edge retention. This end mill is centercutting, allowing plunge entry in addition to peripheral and slot milling.

This end mill suits CNC machining centers and manual mills handling ferrous and non-ferrous materials. The extended reach of 1-5/8 inches makes it practical for deeper pockets and stepped features where standard reach tools fall short. It is used in job shops, tool rooms, and production environments by machinists and CNC operators running steel, aluminum, stainless, and similar materials. The right-hand cut and right-hand flute configuration matches standard spindle rotation on conventional vertical mills and machining centers.

Key Features

• 3/4 inch cutting diameter with a mill diameter tolerance of +0.000 / -0.002 inches for consistent fit and finish
• Three-flute spiral design with 37-degree helix angle for efficient chip flow and reduced cutting forces
• ZrN coating for improved wear resistance and reduced built-up edge in ferrous and non-ferrous materials
• Centercutting geometry allows direct plunge entry without a pre-drilled pilot hole
• Micrograin solid carbide substrate provides rigidity and edge retention at elevated cutting speeds
• Extended reach of 1-5/8 inches enables access to deeper pockets and stepped workpiece features

Compatibility

Designed as a standard 3/4 inch shank solid carbide square end mill compatible with ER collet chucks, end mill holders, and shrink-fit tooling systems that accept a 3/4 inch straight shank on CNC machining centers and manual vertical mills.

Installation Notes

Installation is performed by qualified machinists or CNC setup personnel. Ensure the spindle is fully stopped and the machine is in a safe, locked-out state before inserting or removing any cutting tool. Seat the shank fully into the holder to the recommended gauge line before torquing the retention mechanism. Verify runout with a dial test indicator after tool installation and before cutting to protect workpiece quality and tool life.