Harvey Tool 921016-C4 Diamond Pattern Router Bit

Product Description

The HARVEY TOOL 921016-C4 is a solid carbide diamond pattern router bit engineered for cutting and finishing composite materials. It features a 0.25-inch cutter diameter, a 0.75-inch length of cut, and a 1/4-inch shank diameter, with an overall length of 2.5 inches. The tool is built with 10 flutes and an amorphous diamond coating, which reduces heat buildup and friction during high-speed routing passes. The end mill geometry provides clean entry and controlled material removal in composite substrates. Licensed tradespeople and CNC machinists working with composite panels, laminates, or reinforced materials rely on this style of bit for consistent surface finish and extended tool life.

This router bit is suited for use on composite materials in both production and prototype environments. Typical applications include trimming, profiling, and finishing operations on carbon fiber, fiberglass, and similar reinforced composite panels. The 10-flute diamond pattern geometry distributes cutting load evenly across the flutes, helping to reduce delamination and fiber pullout at cut edges. It is compatible with standard 1/4-inch collet spindles found on CNC routers and manual routing setups used in aerospace, marine, and industrial fabrication shops.

Key Features

• Solid carbide construction for rigidity and wear resistance in abrasive composite materials
• Amorphous diamond coating reduces friction and extends cutting life
• 10-flute diamond pattern geometry minimizes delamination and fiber pullout
• End mill end type allows plunge entry and side milling
• 1/4-inch shank fits standard collets on most CNC and handheld routing platforms
• Compact 0.25-inch diameter suits tight-tolerance profiling and detail work

Compatibility

Designed for use in composite material applications with CNC routers or manual routing equipment equipped with a 1/4-inch collet. Optimized for composite substrates including carbon fiber, fiberglass, and similar reinforced materials.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the spindle is fully powered down and locked out before changing tooling. Seat the shank fully into the collet to the manufacturer-recommended engagement depth and torque the collet nut according to the machine tool specifications. Always verify spindle speed and feed rate settings are appropriate for the composite material being cut before beginning a pass.