Accupro 315525 Square End Mill 1/2 in 3 Flute Carbide Zrn

Product Description

The ACCUPRO 315525 is a solid carbide square end mill designed for precision milling operations in metal cutting and machining applications. Built from micrograin solid carbide, it delivers consistent edge integrity and extended tool life compared to high-speed steel alternatives. The 0.5 inch cutting diameter pairs with a 37-degree helix angle and spiral flute geometry to promote efficient chip evacuation and reduced cutting forces. A zirconium nitride (ZrN) finish adds surface hardness and lubricity, helping resist built-up edge in non-ferrous and ferrous materials. This tool is sized for use in standard CNC machining centers and manual mills with a 0.5 inch collet or end mill holder.

This end mill suits general-purpose profiling, slotting, and peripheral milling on a wide range of workpiece materials. The centercutting design allows plunge entry without a pre-drilled pilot hole, making it practical for ramp entries and pocketing operations. With three flutes, the 315525 balances chip clearance and feed capacity, making it a common choice for aluminum, brass, plastics, and softer steels. It is typically used in job shops, tool rooms, and production machining environments by machinists operating CNC mills or manual bridgeport-style equipment.

Key Features

• Micrograin solid carbide construction for rigidity and wear resistance
• ZrN coating reduces friction and extends tool life in non-ferrous materials
• 37-degree helix angle promotes smooth chip flow and reduced chatter
• Centercutting geometry allows direct plunge entry into workpiece material
• Right-hand cut and right-hand spiral flute for standard spindle rotation
• No chipbreaker for clean, continuous cuts on light-to-moderate depths

Compatibility

Designed as an OEM-style replacement or standard tooling option for any machine spindle accepting a 0.5 inch shank end mill via collet chuck, end mill holder, or milling chuck.

Installation Notes

Installation is performed by qualified machinists. Always power down and lock out the machine spindle before changing tooling. Ensure the shank is fully seated and properly torqued in the holder per the toolholder manufacturer specifications. Verify runout with a dial indicator before initiating a cut, and confirm spindle speed and feed rate are appropriate for the workpiece material before operation.