Harvey Tool 874178-C3 Square End Mill 5/64 in 4 Flute Carbide

Product Description

The HARVEY TOOL 874178-C3 is a solid carbide square end mill designed for precision milling in demanding metal-cutting applications. With a 5/64 inch (0.078 inch decimal) cutting diameter and a 0.117 inch length of cut, this tool is built for tight-tolerance work where dimensional accuracy matters. The AlTiN coating improves heat resistance and extends tool life in ferrous and hardened materials. Four right-hand flutes with a 30-degree helix angle provide efficient chip evacuation and a clean finish on the workpiece. This end mill is installed and operated by machinists in CNC and manual milling environments.

This end mill is suited for small-feature milling in steel, stainless steel, and other hard alloys where a fine-diameter tool is required. The extended reach design, with a 0.625 inch reach length, allows access to deeper pockets and slots without interference from the shank. It is a single-end tool intended for right-hand cutting direction. Typical applications include profiling, slotting, and finishing passes on close-tolerance features in production and prototype machining environments.

Key Features

• AlTiN coating for elevated heat resistance and extended tool life in hard materials
• Solid carbide construction for rigidity and dimensional stability
• 4 right-hand flutes with 30-degree helix for efficient chip evacuation
• Extended reach design with 0.625 inch reach length for deeper pocket access
• Right-hand cutting direction for standard CNC spindle compatibility
• Single-end configuration for straightforward toolholder setup

Compatibility

Designed as an OEM-style replacement and standard-fitment square end mill for CNC machining centers and manual mills using a 1/8 inch shank collet or toolholder.

Installation Notes

Installation should be performed by a qualified machinist following shop-standard toolholder torque procedures. Ensure the spindle is fully stopped and locked out before changing tooling. Verify collet size matches the 1/8 inch shank diameter before seating the tool. Do not exceed manufacturer-recommended feed and speed parameters for the workpiece material and coating type.