Harvey Tool 934878 Square End Mill 5/64 in 3 Flute Carbide

Product Description

The HARVEY TOOL 934878 is a solid carbide square end mill designed for precision milling in metalworking, mold making, and general machining applications. With a 5/64 inch (0.0780 inch) cutting diameter and a 0.117 inch length of cut, this tool is built for tight-tolerance work in small-feature geometries. The 3-flute configuration balances chip evacuation with cutting edge strength, making it well-suited for harder workpiece materials. A 30-degree helix angle promotes smooth cutting action and reduces chatter. The bright/uncoated finish makes it appropriate for a range of ferrous and non-ferrous materials. Machinists and tool-and-die professionals install this end mill in CNC machining centers and manual knee mills.

This end mill is used in applications requiring fine detail work, including cavity milling, profiling, and slotting in small-scale features. The extended reach design, with a 0.55 inch reach length, allows access to recessed areas without sacrificing rigidity. The 1/8 inch shank diameter fits standard collet systems commonly found in CNC routers and vertical machining centers. It is a single-end tool, meaning it is replaced rather than flipped when the cutting edge is worn. Typical industries include aerospace component machining, precision mold work, medical device manufacturing, and general job shop operations.

Key Features

• 5/64 inch (0.0780 inch) cutting diameter for small-feature milling
• Solid carbide construction for rigidity and wear resistance
• 3 flutes with right-hand cut and right-hand flute direction
• 30-degree helix angle reduces chatter and improves surface finish
• Extended reach design with 0.55 inch reach length for recessed access
• Bright/uncoated finish suitable for a broad range of workpiece materials
• Center-cutting capable — supports plunge entry

Compatibility

Designed as a replacement or stocking end mill for CNC machining centers and manual mills using 1/8 inch collets or ER-style collet chucks. Compatible with standard right-hand spindle machines.

Installation Notes

Installation is performed by a machinist or CNC setup technician. Power down and de-energize the machine spindle before changing tooling. Seat the shank fully in the collet and torque the collet nut to the collet manufacturer's specification using the appropriate collet wrench. Verify runout with a dial indicator after installation to confirm concentricity before beginning a cut.