The woodturning tools are longer than those used by the carpenter or sculptor and are forged from high speed steel (HSS) to resist heating from continuous friction against the wood. They include gouges - to rough, to machine, to dig, with a ring - a chisel, a half-round chisel, a truncator, a plane with a double bevel used to slice the wood... To keep their cutting edge essential at all stages of the process of the piece shaping, they must be regularly sharpened on a grinding wheel placed in the immediate vicinity of the lathe.