Cleveland Golf HGC-2 Cobalt Square End Mill 3/8" 2FL TiCN

Square End Mill for Finishing

This Cleveland Golf HGC-2 end mill is a fractional-inch cutting tool made from cobalt steel with a TiCN coating. The 3/8 inch diameter shank matches the cutting diameter, and the single-end design provides a 9/16 inch length of cut. It is intended for general-purpose finishing operations where a square profile is required. The 30-degree helix angle supports chip evacuation in a range of materials.

Verify Toolholder and Machine Compatibility

Before ordering, confirm that your machine spindle or toolholder accepts a 3/8 inch straight shank with no flats or weldon features. Check that the 2-1/2 inch overall length fits within your machine's available Z-axis clearance and tool changer limits. Ensure the right-hand cutting direction matches your spindle rotation and that the rigid setup can handle finishing passes without excessive deflection.

TiCN Coating Extends Tool Life

The titanium carbonitride finish increases surface hardness and heat resistance compared to uncoated cobalt, reducing wear during finishing cuts. This coating allows higher cutting speeds in steel and stainless alloys while maintaining the sharp square corner defined by the .000 inch radius. The two-flute geometry provides adequate chip space for finishing passes, though it is not suited for heavy roughing or deep slotting where chip evacuation becomes critical.