Inconel is a high temperature alloy with 53% nickel. Inconel's toughness and work hardening characteristics make it a challenge to machine. Commonly machinists look to use solid carbide end mills to cut Inconel. The problem with this approach is the high cutting speeds typically used with carbide work harden the material resulting in poor tool life.

Niagara offers an alternative approach to milling Inconel and similar materials with the EXCEL line of Cobalt end mills. The EXCEL line features ASP2030, 8.5% cobalt particle metal steel and aggressive geometry's. With EXCEL metal removal rates can be higher than carbide by taking heavy depths of cut with slow speeds and heavy chip loads.