This is the bottom of a standard Mattarelli whip finisher.
This a whip finisher that he customized. The wood is just a part of a special set supposedly made by Mattarelli
Blue Ribbon does indeed carry authentic Mattarelli whip finishers with the handy end cutter built in.
Dan, why didn't I think of that?
I took files to one of my finishers but just wasn't happy with the outcome.