Find contentLinkMT, actually, other people have done similar things to other blasters. You will need a switch rated for the appropriate amount of stall current though, so it doesn't blow.
I'll see if I can measure the stall and continuous current at high voltages soon.
Most switches I've seen of this size are rated around 6 amps. That is a contentious load rating. It would likely handle a larger current for the breif periods over which a motor draws stall current when they rev up.
