I purchased this "drill press" clamp for its other purpose, to use as a t-track table clamp. The conversion is easy (and reversible); the threaded rod is removed and replaced with a supplied screw. The head of the screw serves to retain the clamp in the t-track. The clamp (with screw) can also be used on a dog bench using Kregtool's bench clamp base.
Once I got the hang of adjusting the tension I have found the clamps to hold securely flat work pieces as well as dowels if teamed with a fence. I now have several.