Same co worker from before gave me a new design to make happen. This is designed to use Bi_metal Reciprocating saw blade 6"/10tpi Medium cut. Model number 209349 from ACE. You will have to cut the tip back 2" and grind down the teeth just to where they start. I put a hole in the side in order to secure the blade to attachment, but the tolerances are so that you can just lightly hammer the blade into it. She seemed to like this one as much as the Drill one. I don't pretend to understand it, I just build it. The ring at the end will have to be cut off, it is strictly there for stability.