Guhring 9030790127060 Corner Radius End Mill 1/2 in 4 Flute

Product Description

The GUHRING 9030790127060 is a solid carbide corner radius end mill designed for high-performance metal removal in demanding machining applications. Built to Series 3079 standards, it features a 0.5 inch mill diameter, a 1.25 inch length of cut, and a 0.062 inch corner radius that reduces stress concentration at the cutting edge. The variable helix and variable index geometry help break up harmonics and reduce chatter during aggressive cuts. A FIREX coating provides thermal resistance and oxidation protection, extending tool life in abrasive workpiece materials. This is a single-end, right-hand cutting tool with a Weldon flat shank for positive drive in end mill holders.

This end mill is suited for both roughing and finishing operations on steel, cast iron, stainless steel, superalloys, titanium, and hard materials. The 3.5 inch overall length and 0.5 inch shank diameter make it a practical choice for standard vertical machining center setups and manual milling machines. It is intended for use with end mill holders and is appropriate for shops running production work or toolroom operations where corner radius geometry is required for part features or edge strength. The Weldon flat shank accommodates side-lock holders common in production environments.

Key Features

• Variable helix and variable index geometry reduces chatter and improves surface finish
• FIREX coating provides high thermal resistance for cutting steel, cast iron, and hard materials
• 0.062 inch corner radius with a tolerance of -0.002 to 0.002 inches for consistent edge geometry
• Solid carbide construction delivers rigidity and wear resistance beyond high-speed steel tooling
• Weldon flat shank for secure positive drive in side-lock end mill holders
• Right-hand flute direction with helical flute type suited for both roughing and finishing passes

Compatibility

Designed for use with standard end mill holders accepting a 0.5 inch Weldon flat shank. Primary workpiece materials include steel and cast iron; secondary materials include stainless steel, superalloys, titanium, and hard materials per material codes P, K, M, S, and H.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the spindle fully stopped and machine power locked out. Ensure the end mill holder is clean and free of chips before seating the Weldon flat shank, and torque the set screw to the holder manufacturer specification. Confirm runout with a dial indicator before beginning a cut, as excessive runout will accelerate corner radius wear and degrade part geometry. Refer to the machine tool builder guidelines and applicable shop safety procedures when setting depth of cut and feed rates.