Attached is a extract from that book I mentioned, showing the hammer and tap wrench. Mine was made with a 3/8" head, instead of the 3/4" in the book. That was long, long ago, and far, far away, and in another universe, so I couldn't tell you why the variation. Might be a little bit long for the Unimat, too, but if I could have a different hammer head size, anyone else could make whatever variations they wanted.?
Got the power straightened out, need a longer cable for the gigabit ethernet, but WiFi works fine
Bill in OKC
Bill in OKC too