Hi I found an old versamatic tapping head at a flea market only 5$ but its missing the collets it says on the box it uses Yankee arbors. I have never heard of these. I have been watching ebay but the only way to get the versamatic ones is to buy a whole one with them and I don't really want to spend that much on it. I took some rough measurements of it and could make one but was wondering if anyone has one they could measure for me. I don't need exact dimensions just an od does it taper? and length and the bottoms shape. It looks like a flat roughly half the od. Thanks