Guhring 9064840190500 Square End Mill 3/4 in 4 Flute

Product Description

The GUHRING 9064840190500 is a solid carbide square end mill designed for high-performance milling in demanding metal cutting applications. Built to Series 6484 specifications, it features a 3/4 inch cutting diameter with four right-hand helical flutes and a variable helix angle of 38 and 40 degrees to reduce chatter and improve chip evacuation. The AlCrN coating delivers excellent heat and oxidation resistance, making this tool well suited for extended tool life in abrasive and high-alloy materials. It installs as a single-end tool with a Weldon flat shank and is spec'd at 4 inches overall length with a 1-5/8 inch length of cut.

This end mill is rated for use in high-alloy steel, soft metal, and tough alloy workpiece materials. The extended reach geometry, with a reach length of approximately 1.929 inches, allows access to deeper features or step-down cuts not reachable with standard-length tooling. The centercutting design supports plunge entry as well as conventional and climb milling passes. It is appropriate for CNC machining centers and manual knee mills operating under rigid fixturing. Machinists and toolroom professionals in job shop, aerospace, and general metalworking environments are the primary users.

Key Features

• Variable helix at 38 and 40 degrees reduces harmonic vibration and chatter during cut
• AlCrN coating provides high-temperature hardness and oxidation resistance for longer tool life
• Solid carbide construction delivers rigidity and wear resistance over high-speed steel alternatives
• Centercutting capability allows plunge milling and ramping entry cuts
• Weldon flat shank provides positive engagement in side-lock toolholders, minimizing pullout risk
• Extended reach length of 1.929 inches enables access to deeper cavities and step features

Compatibility

Designed for use in standard 3/4 inch side-lock or Weldon flat toolholders on CNC machining centers and manual mills. Rated for high-alloy steel, soft metal, and tough alloy workpiece materials per GUHRING Series 6484 application data.

Installation Notes

Installation should be performed by a qualified machinist or toolroom professional. Ensure the machine spindle is fully stopped and locked out before inserting or removing the tool. Seat the Weldon flat fully in the side-lock holder and torque the set screw to the toolholder manufacturer's specification. Verify runout with a dial indicator before beginning a production cut, as excessive runout will accelerate flute wear and degrade surface finish.