I noticed (after typing my article) someone else wanting a price for that box. I guess that I spoiled someone's "steal". :-) (Sorry to the someone.)
Try it in aluminum and steel. It can even make holes in flat spring stock, such as the steel banding used for heavy shipping.
I would not use it for leather, as a leather punch is better for that, letting the waste go through a tube in the punch, so there is less tearing of the adjacent leather.
O.K. Any idea what the Morse taper is? (Not that I need it either. :-)
There is also a lot which I do *not* know. :-) For example, while I have read of the Procunier heads, I have never seen one, and thus did not recognize this one.
I have never seen this style before, but I will have to guess based on what I can see:
1) It probably reverses when you back it out, since it has that long anti-rotation bar. (Though it could be simply for a planetary speed reduction gear set, to give more torque for the bigger taps. 2) I suspect that it does not have the adjustable torque limiter that some of the TapMatic models have. But you are less likely to need that on something of this size. That is better for the heads which handle say 2-56 through #10.I suspect that it:
1) Turns the same way the spindle does when not pressed. 2) Has a little give in the axial direction, to ease starting the tap -- perhaps into an already started hole. 3) When the chuck pulls a short distance from the at-rest, it shifts into neutral. 4) When the chuck pulls a bit more, it switches into reverse, and is likely to speed up a bit as well. This is good for backing the tap out of the threaded hole. 5) The chuck probably has both a Rubberflex collet to hold the shank centered, and a pair of steel plates which clamp on the square flats of the tap to keep it from slipping in the collet. (And it probably uses two different sizes of Rubberflex collets to cover its full range.)But maybe not -- looking at the setscrews at the very end, perhaps there is where it clamps on the squares.
6) Does the aluminum collar near the top rotate? If so, it may be a torque limiter like some of the TapMatic heads have.Anyway -- leave it lying flat as it is shown, and turn the Morse taper with one hand while you verify what the other end does as you pull out on it or press on it. You want to know all of this *before* trying it under power.
Enjoy, DoN.