Need some advice on an easier way to scuff up brass tubes prior to gluing them. I got an order for 30 pieces and spent way too much time with a piece of 150 grit sandpaper scuffing up the brass tubes. Thought about using my DP but thought I might over tighten the chuck and bend/squish the tubes. Tried my belt sander but that just shot pieces all over the place. Any suggestions are welcome.