Optimized for cutting a wide-range of materials, from stainless, sheet metal, as well as common non-ferrous materials, such as aluminum, copper, brass, wood, engineered wood, nail embedded wood and plastics. constructed out of M42 high speed steel with an additional 8% premium cobalt to with-stand abuse and greater wear resistance. Its 1-7/8 in cutting depth provides flexibility when going through multiple layers of materials. All kits come in a rugged and durable molded plastic carrying case that can survive extra wear and tear of any project.