Harvey Tool 874147-C3 Square End Mill 3/64 in 4 Flute Carbide

Product Description

The HARVEY TOOL 874147-C3 is a solid carbide square end mill designed for precision milling in ferrous and non-ferrous metals, hardened steels, and difficult-to-machine alloys. The 3/64 inch (0.047 inch decimal) cutting diameter and 0.07 inch length of cut make this tool suited for fine-detail slotting, profiling, and contouring in tight geometries. An AlTiN coating provides thermal resistance and wear protection during high-speed dry or near-dry cutting. This end mill is installed and operated by machinists and CNC programmers working on manual mills, vertical machining centers, and multi-axis CNC equipment.

This tool fits applications requiring extended reach in confined pockets or deep-wall features. The 3/8 inch reach length and 2.5 inch overall length allow access to workpiece areas that standard stub-length tools cannot reach. The right-hand cutting and right-hand flute direction suit conventional CNC milling setups. Four flutes provide a balance of chip clearance and surface finish quality for finishing passes in small-diameter work. This end mill is used in tool and die, medical device, aerospace, and general precision machining environments.

Key Features

• 3/64 inch (0.047 inch) cutting diameter for fine-detail and micro-milling work
• AlTiN coating for high-temperature wear resistance in ferrous and hardened materials
• 4-flute geometry balances chip evacuation with surface finish quality
• Extended reach design with 3/8 inch reach length for deep-pocket access
• 30-degree helix angle supports smooth cutting action and reduced deflection
• Solid carbide construction delivers rigidity and dimensional stability at small diameters

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide square end mill for CNC machining centers and manual mills accepting a 1/8 inch shank diameter collet or end mill holder.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Secure the 1/8 inch shank in a properly sized collet or end mill holder and verify runout before cutting. Confirm spindle speed and feed rate are appropriate for the workpiece material and this tool diameter before starting the program. Inspect the cutting edges under magnification prior to use, as solid carbide tooling at small diameters is brittle and sensitive to handling damage.