Harvey Tool 942247 Square End Mill 3/64 in 3 Flute Carbide

Product Description

The HARVEY TOOL 942247 is a solid carbide square end mill designed for precision milling in demanding applications. With a 3/64 inch (0.047 inch) cutting diameter and a 9/64 inch (0.141 inch) length of cut, this tool is built for tight-tolerance work in small-diameter applications. The three-flute geometry paired with a 42-degree variable helix reduces harmonics and chatter, improving surface finish and tool life. The bright, uncoated finish makes it suitable for a range of non-ferrous and ferrous materials. Machinists and CNC operators working in precision machining, moldmaking, and aerospace component work rely on tools at this diameter range for detail passes and feature work in confined geometries.

This end mill fits applications where small-diameter precision cutting is required. The 1/8 inch shank diameter accommodates standard ER collet chucks and small-diameter toolholders common in vertical machining centers and high-speed spindles. The 1-1/2 inch overall length keeps the tool rigid for its size, minimizing deflection in detail-cutting scenarios. It is a single-end, center-cutting tool, meaning it can plunge directly into material as well as perform peripheral milling passes.

Key Features

• 3/64 inch cutting diameter for small-feature and detail milling work
• Three-flute design balances chip evacuation and edge strength at this diameter
• 42-degree variable helix reduces chatter and improves surface finish
• Center-cutting geometry allows direct plunge entry without pilot drilling
• Right-hand cut and right-hand flute direction for standard CNC spindle use
• Bright, uncoated solid carbide construction suitable for a wide range of materials

Compatibility

Designed for use with 1/8 inch ER collet chucks or equivalent small-diameter toolholders on vertical machining centers and CNC mills. Consult your toolholder specifications to confirm collet range and runout requirements before use.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Seat the shank fully into the collet to the recommended engagement depth and torque the collet nut according to the toolholder manufacturer specifications. At this diameter, runout is critical - use a high-precision collet and verify runout with a dial indicator before cutting.