Be aware that drilling sheet metal like that (unclamped) in a drill press can get exciting and dangerous when the bit gets stuck in the metal :)
Jamie Magin
2018-11-01 15:14:49 +0000 UTC
hole saws are very imprecise - fine for pipes through walls, but they will tear at the material and the most out-of-line tooth will dictate the final diameter. Been there :o(
2018-11-01 10:15:53 +0000 UTC
You have a CNC machine and you need a bunch of evenly-spaced holes in a plate... Hmmm... What *will* you do?