Excellent Rotozip bit set with alternative uses. I put the drill bit you see on the right in the photo in the fitted motor, drilled a hole in the tire for the nail, used some rubber glue and fitted the plug. That lasts 6 weeks. Only 4 more weeks until I put on my snow and not throw away an old, clogged all-season tire. I wouldn't use this as a permanent plug in a tire, but other than working with drywall, these parts rock.