Accupro 12181667 Square End Mill 0.3937 in 2 Flute Carbide

Product Description

The ACCUPRO 12181667 is a solid carbide square end mill designed for precision milling in metalworking and machining applications. With a 0.3937 inch (10 mm) mill diameter and a 2-flute configuration, this tool delivers efficient chip evacuation and clean cutting performance. The 40-degree helix angle promotes smooth cutting action and reduced cutting forces. Manufactured from micrograin carbide, this end mill offers high hardness and wear resistance suitable for demanding milling operations. It is centercutting capable, allowing direct plunge entry into the workpiece. Licensed machinists and CNC operators are the primary users of this tooling.

This end mill is suited for use in CNC machining centers and manual mills in both job shop and production environments. With a 0.5512 inch length of cut and a 2-3/4 inch overall length, it is classified as a stub-length tool, offering rigidity over reach. The right-hand cut and right-hand spiral flute geometry make it compatible with standard spindle configurations. It performs well in ferrous and non-ferrous materials where an uncoated micrograin carbide substrate is appropriate, including aluminum, brass, and some steels.

Key Features

• Solid micrograin carbide construction for high wear resistance and edge retention
• 2-flute design promotes efficient chip evacuation in a variety of materials
• 40-degree helix angle for smooth cutting action and reduced cutting forces
• Centercutting geometry allows direct plunge milling without pre-drilling
• Stub-length profile provides added rigidity and reduced deflection
• Uncoated finish suitable for applications where coating is not required or preferred

Compatibility

Designed as a standard square end mill replacement for applications requiring a 0.3937 inch (10 mm) diameter, 10 mm shank, 2-flute, right-hand cut solid carbide tool with stub-length geometry.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Ensure the spindle is fully stopped and the machine is in a safe, locked-out state before changing tooling. The shank diameter tolerance of -0.0001 to -0.0004 inches is designed for use with standard ER or similar collet systems — verify collet size matches the 10 mm shank before clamping. Do not exceed the manufacturer-recommended speeds and feeds for the workpiece material and machine setup.