Time for a new 4-Jaw chuck - perhaps?

[Tony Wells]

Yep, the best use I found for them was locating the mounting holes for mounting some sheet metal guards on a plastic bag sealing machine I helped design and build. Every one (well the first 75 or so) weren't so exactly the same that we could pre-punch the holes, nor were the sheet metal guards.

But they do have their uses, and can be quite handy. Not so much in the toolroom, but for sure in fabrication.