Guhring 9042610063500 Ball End Mill 0.25in 4 Flute Carbide

Product Description

The GUHRING 9042610063500 is a solid carbide ball end mill designed for precision milling in demanding metalworking applications. Built on Guhring Series 4261, it features a 0.25 inch diameter with a 0.75 inch length of cut and a 2.5 inch overall length. The four-flute, single-end geometry uses a variable helix angle of 36 and 38 degrees to reduce chatter and improve chip evacuation. The ultra-fine grain carbide substrate is coated with Guhring nano-A, a high-performance PVD coating that extends tool life in abrasive and hard materials. Licensed machinists and CNC tooling technicians are the primary installers of this cutting tool.

This end mill is engineered primarily for milling stainless steel and steel, with secondary capability in cast iron. The ball nose profile suits 3D contouring, profiling, and finishing operations on machining centers and CNC mills. The 0.25 inch shank diameter fits standard ER collet chucks and end mill holders common in production and job-shop environments. The regular-length designation keeps the tool rigid for maintaining tight tolerances in finish-pass work on ferrous materials.

Key Features

• 0.25 inch ball nose diameter with 0.75 inch length of cut for controlled finishing cuts
• Variable helix design at 36 and 38 degrees reduces harmonic vibration and chatter
• nano-A PVD coating enhances wear resistance and heat dissipation in stainless steel and steel
• Ultra-fine grain solid carbide substrate provides rigidity and edge retention
• Four right-hand spiral flutes with right-hand cutting direction for standard CNC spindle compatibility
• Single-end configuration; shank diameter tolerance h6 and mill diameter tolerance h10

Compatibility

Designed as an OEM-style solid carbide ball end mill replacement suitable for standard 0.25 inch collet chucks and end mill holders; primary workpiece materials are stainless steel and steel, with secondary use in cast iron.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Ensure the machine spindle is fully stopped and locked out before changing tooling. Seat the shank fully into the collet or holder and torque the retention nut according to the toolholder manufacturer specifications. Verify runout with a dial indicator before committing to finish passes, as excessive runout accelerates edge wear on carbide tooling.