I made this plane is made out of Ipe and rock maple. It is a smoother. The iron is 1 5/8 and is the new Veritas PM-V11 steel. The steel takes and keeps an edge. It is probably some of the finest steel in the world. I am very happy with the way the Ipe took a Boiled Linseed Oil Finish. The sole was sanded flat and left unfinished. I plan to put a wax finish on it.