Guhring 9031530027800 Square End Mill 7/64 in 4 Flute Carbide

Product Description

The GUHRING 9031530027800 is a solid carbide square end mill designed for precision milling in ferrous and high-strength materials. Part of the GUHRING Series 3153, it features a 7/64 inch (0.1094 inch decimal) cutting diameter with a 3/8 inch length of cut and a 1-1/2 inch overall length. The FIREX coating provides elevated heat and wear resistance, making it well suited to demanding cutting conditions. With four spiral flutes and a 30-degree helix angle, this end mill delivers efficient chip evacuation and smooth surface finishes. It is centercutting, allowing direct plunge entry into the workpiece. Installed by machinists and toolroom technicians in CNC machining centers and manual milling machines.

This end mill is sized for fine detail work and tight-tolerance slots, pockets, and profiles requiring a small-diameter tool. The 1/8 inch straight cylindrical shank fits standard collets and tool holders. Its primary workpiece materials include cast iron, stainless steel, and steel (material codes K, M, and P), with secondary capability in non-ferrous and superalloy materials (codes N and S). The regular length type makes it appropriate for standard reach applications without the deflection risk of extended-reach tooling.

Key Features

• FIREX coating for high heat resistance and extended tool life in hard and abrasive materials
• 4 spiral flutes with 30-degree helix angle for efficient chip removal and reduced cutting forces
• Centercutting geometry enables direct plunge milling without a pre-drilled entry hole
• Solid carbide construction provides rigidity and dimensional stability at cutting speed
• Right-hand cut and right-hand flute orientation for standard CNC and manual mill setups
• Mill diameter tolerance h10 and shank diameter tolerance h6 for consistent tool holder fit

Compatibility

Designed for use in standard 1/8 inch collets and tool holders on CNC machining centers and manual milling machines. Rated for cast iron, stainless steel, and steel as primary workpiece materials, with secondary suitability for non-ferrous and superalloy materials per GUHRING Series 3153 specifications.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician familiar with small-diameter carbide tooling. Ensure the spindle is fully stopped and the machine is powered down before changing or setting tools. Carbide end mills are brittle — avoid side-loading the shank during tightening and do not use a collet that does not match the 1/8 inch shank diameter. Confirm runout with a dial indicator before committing to a full-depth cut, particularly at this small diameter where deflection and breakage risk increases.