Hatz Biplane Association

I would suggest you think about a grit type hole saw for thin wall tubing, .035" - .062". The large teeth on a standard hole saw will catch and possibly jam or bend the thin wall tube. This because you are feeding the saw through the material by hand and will not be able to control the very slow feed speed needed.

I have these mounted in a drill press fish-mouth type tube cutter, they work great.

LENOX ONE PIECE DIAMOND™ HOLE SAWS

Purchase & Pricing

That looks like a worthwhile addition to any airplane builders tool box!

A comment on flashback arresters,here in Aussie they are on the hand piece and the gauges as well but they tend to make the hand piece a bit heavy and unwieldy. Cheers Ross