Special tooth geometry with regular pitch provides a smoother cut and better chip clearance preventing clogging and heat build-up. Teeth are alternate & side set to minimize binding and friction requiring less feed pressure. Ideal for mild steel (up to 1000 N/mm2 strenght), stainless steel, non-ferrous metal, aluminium, cast iron, copper and zinc. Bi-Metal Plus 8% Cobalt: Premium bi-metal with 8% cobalt provides Xtreme results in performance and up to 50% longer lifetime than the competition.