Osg 84400023 Square End Mill 1/16 in 4 Flute Solid Carbide

Product Description

The OSG 84400023 is a solid carbide square end mill designed for precision milling in demanding machining environments. With a 1/16 inch (0.0625 inch) cutting diameter and a 4-flute configuration, this end mill is built for finishing passes and fine-feature work in materials requiring tight tolerances. The 43-degree helix angle improves chip evacuation and reduces chatter at high feed rates. Centercutting capability allows plunge entry directly into the workpiece. The DUROREY coating adds surface hardness and heat resistance, extending tool life in abrasive or harder workpiece materials. This tool is typically installed and operated by machinists and CNC programmers in job shop, aerospace, medical, and mold-making applications.

This end mill suits applications requiring small-diameter, high-precision cuts in ferrous and non-ferrous materials. The micrograin carbide substrate provides the rigidity needed to hold tight tolerances at the 1/16 inch scale. With a 1/4 inch shank diameter and 2-1/2 inch overall length, it fits standard collet chucks and tool holders commonly found on CNC machining centers and manual knee mills. The 5/32 inch length of cut limits lateral engagement depth, which is appropriate for the small cutting diameter and helps prevent deflection during operation.

Key Features

• 1/16 inch cutting diameter with 5/32 inch length of cut for fine-feature milling
• 4-flute solid micrograin carbide construction for rigidity and edge retention
• 43-degree helix angle promotes efficient chip flow and reduced vibration
• Centercutting design allows direct plunge cuts without pre-drilling
• DUROREY finish enhances wear resistance and thermal stability
• Right-hand cut and right-hand flute geometry for standard CNC spindle compatibility

Compatibility

Designed as an OEM-style replacement and standard solid carbide square end mill suitable for use in CNC machining centers and manual mills equipped with 1/4 inch collet or tool holder systems.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the spindle is fully powered down and the machine is in a safe state before changing tooling. Seat the 1/4 inch shank fully into the collet or tool holder and torque the retention mechanism per the machine tool manufacturer specifications. Verify runout with a dial indicator before initiating a cutting program, as runout at small diameters like 1/16 inch significantly affects tool life and part accuracy.