Midwest Industrial Tool Grinding Inc. has expanded its tool coating capabilities to include surface treatment options. The coating options include AlTiN (aluminum titanium nitride), TiN (titanium nitride), TiCN (titanium carbon nitride), nACo (aluminum titanium nitride and silicon nitride) and nACRo (aluminum chrome nitride and silicon nitride). MITGI coats carbide and HSS tools with round shanks from 1⁄8" to 1" (3.175mm to 25.4mm) in diameter.