The secret is to use the right bit, an angle grinder prevents splintering on thin panels or top grain edges, like a drum !i They are made for steel or wood or stone !i
So you attach this to a side angle grinder then "free hand" the edge??
When I have wood splintering problems I climb cut with the power feeder, but that dont work with drums. I guess you could try scoring the veneer with a utility knife as you would cutting off a door.