Osg 20480200 Corner Radius End Mill 1/4 in 3 Flute Carbide

Product Description

The OSG 20480200 is a solid carbide corner radius end mill designed for precision milling in non-ferrous metal applications. It features a 0.25 inch diameter with a 0.02 inch corner radius, providing a controlled edge break that reduces chipping and improves surface finish on contoured cuts. The 3-flute helical geometry supports efficient chip evacuation while maintaining rigidity in the cut. With a 4 inch overall length and long-length classification, this tool is suited for applications requiring extended reach beyond standard-length tooling. It runs right-hand cutting and flute direction with a high helix angle and coarse pitch, making it a strong choice for roughing passes in non-ferrous materials. Licensed machinists and CNC tooling professionals install and operate this tool in production and job shop environments.

This end mill is built for use in non-ferrous metal machining, including aluminum, brass, copper, and similar materials. The single-end configuration, straight-cylindrical shank, and 0.7500 inch length of cut make it compatible with standard toolholders in CNC machining centers and manual mills. The long reach length of 2.125 inches allows access to deeper features such as pockets, slots, and profiled walls where standard-length tools cannot reach. The uncoated bright finish suits applications where coating interaction with workpiece material is a concern or where regrinding is anticipated.

Key Features

• 0.02 inch corner radius reduces edge chipping and improves finish on profiled cuts
• 3-flute solid carbide construction balances chip clearance and tool rigidity for non-ferrous roughing
• High helix angle promotes efficient chip evacuation in aluminum and soft metals
• Long-length series with 2.125 inch reach for deep pocket and slot applications
• Right-hand cut and flute direction with coarse pitch for aggressive material removal
• Center-cutting capable, allowing plunge entry without a pre-drilled pilot hole

Compatibility

Designed for use with standard cylindrical-bore toolholders. Primary workpiece material is non-ferrous metal. Suitable for CNC machining centers and manual mills accepting a 0.25 inch straight-cylindrical shank with h6 shank diameter tolerance.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician. Ensure the toolholder and spindle are clean and free of debris before seating the shank. Confirm runout within acceptable limits for the application before beginning a cut. Follow machine manufacturer guidelines and applicable shop safety procedures when setting tool length offsets and spindle speeds.