Accupro 12178925 Square End Mill 3/8 in 3 Flute Carbide

Product Description

The ACCUPRO 12178925 is a solid carbide square end mill designed for precision milling in metal, alloy, and hard material applications. Built from micrograin solid carbide with a nACRo finish, this tool delivers high wear resistance and thermal stability under demanding cutting conditions. The 3/8-inch cutting diameter pairs with a 40-degree helix angle and spiral flute geometry to promote efficient chip evacuation and smooth cutting action. Three flutes provide a balance of chip clearance and edge strength. This end mill is used and installed by machinists and tool-and-die professionals operating CNC mills and manual milling machines.

This end mill fits standard 3/8-inch collets and tool holders. The 1-1/8-inch length of cut (LOC) and 3-inch overall length (OAL) make it well-suited for slotting, profiling, and peripheral milling operations in both production-floor and job-shop environments. The centercutting design allows direct plunge entry into material. Right-hand cut and right-hand flute orientation are standard for conventional CNC and manual mill setups.

Key Features

• Micrograin solid carbide construction for hardness and edge retention
• nACRo finish reduces friction and extends tool life in ferrous and non-ferrous materials
• 40-degree helix angle promotes smooth cutting and effective chip removal
• Centercutting geometry allows plunge milling without a pilot hole
• Right-hand cut, right-hand flute — compatible with standard spindle rotation
• Three-flute design balances chip clearance with cutting stability

Compatibility

Designed for use in standard 3/8-inch collet chucks and end mill holders on CNC machining centers and manual knee mills.

Installation Notes

Installation is performed by a qualified machinist or toolroom technician. Power down and lock out the spindle before changing tooling. Ensure the shank is fully seated and the collet nut is torqued according to the tool holder manufacturer specifications. Verify spindle rotation direction matches the right-hand cut orientation before engaging the workpiece.