A novel approach to the bowl gouge:  two different ends in order to have the same grind on both ends OR different grinds.  Needless to say, you'll need an interchangeable handle--see the Oneway 17.5" handle on this site  or the package offered of this gouge and the handle.

The gouge is 5/8" in diameter (called a 1/2" in the English system, called 5/8" in the North American system).

The tool is a real sleeper in the field, not known by many.  It is made from the favorite steel of Alan (used in his Uber Skews)--powdered  metal M4 HSS.  The flute is very clean and a perfect shape.  The overall length is 15.5" with 6" flutes.