We're going to discuss several methods to drill and punch holes in sheet metal. Some of these methods can be used interchangeably, but this depends on the application the hole needs to be created ...

With the fate of repetitive motion injury looming due to the need to drill 1,200 holes, [bitluni] took matters into his own hands and built this nifty DIY hole punch for light-gauge sheet metal.

Most metal aircraft are held ... allowing you to actually drill the hole in place, which is a real timesaver. For the homemade version, you can simply center punch the location of each hole ...

Engineers designing sheet metal parts ... best to specify hole diameters greater than the sheet’s thickness (T). Hole diameters less than the sheet result in higher punch loading and excessive ...