These are a couple of the ones I still have that are usable. I think I have had them for close to 50 years now but they are still available at Sears and some other places plus on line. You will usually want at least two of each as that is the way things work. Right now I could use 4 of them.
The bottom tool may have been a hole set at one time but now is used for drift work.
Instead of putting screws and bolts in holes to align things up you drop in a drift pin and it's weight will let is settle to be snug in the hole (upright) w/o damaging either the hole or the fastener. A very quick way to set things in place when doing checking of fit or working around something.
Imprinted on the handles is: