Guhring 9030780190500 Square End Mill 0.75in 4-flute Carbide

Product Description

The GUHRING 9030780190500 is a solid carbide square end mill designed for high-performance milling in demanding ferrous and stainless steel applications. Part of the GUHRING Series 3078, this single-end mill features a variable helix design with flute angles ranging from 40 to 42 degrees, which reduces harmonic vibration and chatter during aggressive cuts. It carries a FIREX finish, a multi-layer PVD coating that provides elevated heat resistance and extended tool life in dry or near-dry cutting conditions. With a 0.75-inch cutting diameter and a 1.5-inch length of cut, this tool is suited for slotting, profiling, and peripheral milling on CNC machining centers.

The 9030780190500 is intended for machinists and CNC programmers working with stainless steel, alloy steel, and cast iron in production and job-shop environments. The Weldon flat shank diameter matches the 0.75-inch cutting diameter, providing a secure, anti-pullout grip in side-lock toolholders. The centercutting geometry allows plunge entry without a pre-drilled hole, supporting ramping and helical interpolation strategies. This tool is classified under ISO material groups P, M, K, and S, covering carbon steel, stainless steel, cast iron, and certain high-temperature alloys.

Key Features

• Variable helix at 40 and 42 degrees reduces chatter and improves surface finish
• FIREX multi-layer PVD coating for extended tool life in stainless and alloy steel
• Centercutting design allows direct plunge and ramping entry
• Weldon flat shank provides anti-pullout retention in side-lock holders
• Spiral flute geometry with right-hand cut and right-hand flute direction
• No chipbreaker — suited for continuous finishing and semi-finishing passes

Compatibility

Designed for use in CNC machining centers and manual mills equipped with 0.75-inch side-lock or Weldon-style toolholders. Optimized for primary workpiece materials stainless steel and steel (ISO groups M and P), with secondary suitability for cast iron (ISO group K).

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the spindle is fully stopped and the machine is in a safe state before loading or unloading the tool. Seat the Weldon flat against the setscrew in the toolholder and torque the setscrew to the toolholder manufacturer specification — do not rely on feel alone. Verify runout with a dial indicator before beginning a production run, as excessive runout accelerates flute wear on solid carbide tooling.