This demonstration of a passer drill had me laughing hysterically.
The passer drill can make shallow holes in various shapes from a square to stars. But to make it work, you have to draw the bow back and forth and move your body up and down and side to side so the tips of the drill bit can reach into the corners of the steel plate stencils and cut into the wood.
So here’s Roy Underhill, master carpenter and wood working historian, cranking on this wooden bow while gyrating his body around. He was killing me. I wish I could make a gif and do it justice. But it’s one of those things where you’re not really expecting to see something silly and then it happens and you just crack up.