This was fun and way to easy to do. I cut the old bristles off with a pocket knife as close to the handle as I could. Drilled the old plug out with a drill press, but it would have been easy with a hand drill. I drilled down enough to were I hit the hollow portion of the handle. I filled the void with 5 min epoxy, the type that comes pre-packaged with side by side syringes with epoxy and catylyst pre measured. I placed the knot in at the last minute. I made sure to sand the knot base and the inside of the top of the brush hole. This little bugger is a lather machine
