Accupro 12176869 Square End Mill 1/8 in 3 Flute Carbide

Product Description

The ACCUPRO 12176869 is a solid carbide square end mill designed for precision milling in ferrous and non-ferrous materials. With a 0.125 inch mill diameter, a 7/16 inch (0.4375 inch) length of cut, and a 1-1/2 inch overall length, this tool is built for tight-tolerance work in confined geometries. The 3-flute, right-hand spiral configuration with a 40-degree helix angle promotes efficient chip evacuation and smooth cutting action. Micrograin carbide construction provides the hardness and edge retention needed for consistent performance across production runs. The uncoated finish makes it suitable for applications where coating buildup or contamination is a concern.

This end mill is suited for CNC machining centers and manual mills used in job shops, tool rooms, and production environments. The centercutting design allows plunge entry, giving machinists flexibility in pocket milling and slotting operations. The 1/8 inch shank diameter fits standard collet systems commonly found in high-speed spindles and small-diameter toolholding setups. It is a practical choice for detail work, small-part machining, and finishing passes where dimensional accuracy is critical.

Key Features

• Solid micrograin carbide construction for edge retention and rigidity
• 3-flute spiral design with 40-degree helix angle for efficient chip evacuation
• Centercutting geometry allows plunge milling and pocket entry
• Right-hand cut and right-hand flute for standard spindle compatibility
• Mill diameter tolerance of +0.000 / -0.0025 inches for consistent fit
• Uncoated finish suitable for applications requiring clean, uncoated cutting edges

Compatibility

Designed as a standard 1/8 inch shank square end mill compatible with collet chucks and toolholders accepting 0.125 inch shank diameters on CNC machining centers and manual milling machines.

Installation Notes

Installation should be performed by a qualified machinist following shop safety protocols. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Seat the shank fully into the collet or toolholder to the recommended grip depth and torque the retention nut per the toolholder manufacturer specifications. Verify runout with a dial indicator before beginning a cut, particularly at this diameter, where small deviations can affect tool life and surface finish.