Accupro 315552 Square End Mill 1/2 in 3 Flute Carbide Zrn

Product Description

The ACCUPRO 315552 is a solid carbide square end mill designed for precision milling operations in metalworking and machining applications. It features a 1/2 inch cutting diameter, a 5/8 inch length of cut, and a 6 inch overall length, making it well suited for extended-reach profiling, slotting, and peripheral milling. The 3-flute spiral design with a 37-degree helix angle supports efficient chip evacuation and smooth cutting action. A ZrN (zirconium nitride) coating improves surface hardness and heat resistance, extending tool life in demanding cut conditions. Micrograin carbide construction provides the rigidity and edge retention needed for consistent performance in ferrous and non-ferrous materials. Licensed machinists and CNC programmers are the primary end users.

This end mill fits standard milling machine spindles and CNC machining centers that accept a 1/2 inch shank. It is appropriate for profiling, contouring, and full-slot milling in production and job-shop environments. The centercutting geometry allows plunge entry directly into the workpiece without a pre-drilled hole. Right-hand cut and right-hand flute configuration is the standard orientation for conventional vertical and horizontal milling setups.

Key Features

• Solid micrograin carbide construction for superior edge retention and rigidity
• ZrN coating enhances wear resistance and reduces heat buildup at the cutting edge
• 37-degree helix angle promotes efficient chip flow and reduces chatter
• Centercutting design allows direct plunge milling without pre-drilling
• 3-flute geometry balances chip clearance with cut surface finish
• Mill diameter tolerance of +0.000 / -0.002 inches ensures consistent fit and finish

Compatibility

Designed for use in CNC machining centers and manual milling machines with a 1/2 inch collet, end mill holder, or equivalent 1/2 inch shank toolholder. Right-hand spindle rotation required.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully powered down and the tool changer or spindle is locked before changing tooling. Seat the shank to the full recommended grip length in the holder to minimize runout and prevent pull-out under load. Verify spindle rotation direction and programmed feed and speed parameters before initiating a cut.