Accupro 12178759 Square End Mill 25/64 in 2-flute Carbide

Product Description

The ACCUPRO 12178759 is a solid carbide square end mill designed for precision milling operations in metal cutting and machining environments. With a 25/64 inch (0.3906 inch) mill diameter and a 1 inch length of cut, it delivers consistent material removal in slotting, profiling, and peripheral milling applications. The nACRo coating provides enhanced wear resistance and heat reduction at the cutting edge. The 40-degree helix angle promotes efficient chip evacuation and smooth cutting action. This tool is installed by machinists and CNC operators working in job shops, production machining, and toolroom environments.

This end mill is suited for use on CNC machining centers and manual mills where tight tolerances and consistent surface finishes are required. The centercutting geometry allows the tool to plunge directly into workpiece material. With a 7/16 inch shank diameter and 2-3/4 inch overall length, it fits standard ER and other common collet systems. The micrograin carbide substrate supports cutting in ferrous and non-ferrous materials where edge retention is critical.

Key Features

• 25/64 inch (0.3906 inch) mill diameter with a tight tolerance of +0.000 / -0.002 inches
• nACRo coating for improved heat resistance and extended tool life
• 40-degree spiral flute helix for aggressive chip evacuation
• Centercutting design allows direct plunge entry into material
• Micrograin solid carbide substrate for rigidity and edge retention
• Right-hand cut and right-hand flute configuration for standard spindle use

Compatibility

Designed as an OEM-style solid carbide square end mill for use in standard collet and end mill holder systems accepting a 7/16 inch shank diameter.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator with the machine spindle fully stopped and locked out before tool changes. Ensure the shank is fully seated and properly torqued in the collet or end mill holder per the toolholder manufacturer guidelines. Inspect the cutting edges for chips or wear before each use. Follow applicable shop safety procedures and machine tool manufacturer recommendations for speeds and feeds.