Guhring 9030790063540 Corner Radius End Mill 1/4 in Carbide

Product Description

The GUHRING 9030790063540 is a solid carbide corner radius end mill designed for precision milling in demanding metal-cutting applications. It features a 1/4 inch diameter, a 0.031 inch corner radius, and four flutes with a variable helix and variable index geometry. The FIREX coating provides heat and wear resistance for extended tool life when cutting steel, cast iron, stainless steel, superalloys, titanium, and hard materials. With a 3/4 inch length of cut and 2.5 inch overall length, this single-end tool is sized for typical finishing and roughing passes in both manual and CNC setups. It is installed by machinists and CNC operators in production and job shop environments.

This end mill is suited for both roughing and finishing operations in ferrous and difficult-to-machine materials including steel, cast iron, stainless steel, superalloys, titanium, and hard materials. The corner radius geometry reduces stress concentration at the cutting edge compared to a square end mill, making it a practical choice for slotting, profiling, and pocket milling where edge chipping is a concern. The straight-cylindrical shank fits standard end mill holders used in CNC machining centers and manual milling machines.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard material applications
• FIREX coating for elevated heat resistance and extended tool life
• Variable helix and variable index geometry reduces chatter and improves surface finish
• 0.031 inch corner radius with a tight tolerance of -0.002 to 0.002 inches
• Right-hand cut, right-hand flute direction with centercutting capability for versatile entry paths
• Compatible with standard end mill holders via 1/4 inch straight-cylindrical shank

Compatibility

Designed for use with standard end mill holders. Primary workpiece materials are steel and cast iron. Secondary workpiece materials include stainless steel, superalloys, titanium, and hard materials. Series 3079.

Installation Notes

Installation is performed by a machinist or CNC operator. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Seat the shank fully in the end mill holder and torque the retention mechanism per the holder manufacturer specifications. Confirm runout with a dial indicator before beginning a cut, particularly when working with tight-tolerance corner radius requirements.