Guhring 9031830063500 Square End Mill 0.25in 6 Flute Carbide

Product Description

The GUHRING 9031830063500 is a 6-flute solid carbide square end mill designed for high-performance material removal in hard materials and cast iron. Built on GUHRING Series 3183, it features a 55-degree helix angle and FIREX coating for extended tool life and heat resistance in demanding cutting applications. The 0.25-inch diameter with a long-length configuration and 0.75-inch length of cut makes it well-suited for finishing and semi-finishing passes where rigidity and surface finish quality matter. Right-hand flute direction and right-hand cutting geometry are standard. This end mill is a single-end tool with a straight cylindrical shank and no chipbreaker, installed by machinists and CNC tooling professionals in production or job-shop environments.

This end mill is intended for use in hard materials (material group H) as the primary application, with cast iron (material group K) as a secondary application. The long flute type and 55-degree helix angle promote chip evacuation and reduced cutting forces at higher feed rates. Center-cutting capability allows plunge entry. Typical installations include CNC vertical machining centers and manual mills where a 0.25-inch shank toolholder or collet chuck is used. The reach length of 1.5 inches supports access to moderate-depth features without excessive overhang.

Key Features

• FIREX coating for elevated heat resistance and extended tool life in hard and abrasive materials
• 6-flute geometry improves feed rate capacity and surface finish over lower-flute-count alternatives
• 55-degree helix angle promotes efficient chip evacuation and reduced radial cutting forces
• Center-cutting design allows direct plunge milling without pre-drilled entry
• Solid carbide construction provides rigidity and wear resistance in hard material grades
• Straight cylindrical shank with h6 tolerance ensures consistent runout in precision collet and hydraulic chucks

Compatibility

Designed as an OEM-style replacement or direct tooling selection for CNC and manual milling applications requiring a 0.25-inch diameter, 6-flute solid carbide square end mill in hard material and cast iron machining contexts. Compatible with standard 0.25-inch shank toolholders, collet chucks, and hydraulic chucks accepting straight cylindrical shanks.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician. Ensure the machine spindle is fully stopped and locked out before mounting or removing the tool. Seat the shank to the recommended minimum insertion depth for the toolholder type in use to prevent pullout under load. Verify runout with a dial indicator before beginning a production cut, especially when working in hard materials where tool deflection or runout can accelerate wear or cause premature failure.