Cobalt, and Some Carbide brazed on. I think most are Cobalt. Might be some high speed tooling. Of course the ones in wax MUST ALREADY be sharpened and ready to go. Some of the cobalt ones dont look abused neither. Boxed and ready to go. This item is in the category “Business & Industrial\CNC, Metalworking & Manufacturing\Metalworking Equipment\Metalworking Lathes”. The seller is “usajohn14″ and is located in this country: US. This item can be shipped to United States.