A coworker bought a view camera, and while searching for glass wants to
take some pinhole pictures. I ran through the formula, and the pinhole
needs to be about .025". I have, somewhere, PCB drill bits in that size
range. The material will be brass shim or soda can. My first attempt was
going to be taping the Dremel to the quill of the drill press and go for
it. Anyone have better ideas for a clean burr free hole?

Kevin Gallimore