These Bowl Gouges are part of the Creative Turning Pro Series of Turning Tools.
The tools are made from M2 High Speed Steel (HSS) which has been Cryogenically treated. This treatment changes the structure of the steel which gives it additional wear resistance and better edge holding capability. It holds the edge 2 to 3 times longer than standard M2 HSS.
The handles are from European hardwood which with a stainless steel ferrule securing the tool in the handle.