Guys I have a 12" Sears lathe that I would like to add a DRO to the tailstock so that I can drill holes to certain depth on several pieces.I was thinking of one of those cheap 6" HF digital calipers,but its still to long.I only need maybe a 4" travel so what about a depth gage?Is the travel on those 4" or is it shorter?Since the the tailstock has no flat places I was going to mount a flat plate from front to back and mount the DRO on top then clamp it on the ram.Any ideals or thoughts on a project like this?Thanks---kroll