[Shop-talk] Drilling holes in sheet metal

[Trevor Boicey]

Doug Braun wrote:
> Hello,
> 
> What's the best way to drill a nice clean, round 3/4"
> hole in 16 gauge (0.060") sheet steel?  This a car
> body, so it would be hard to back up the hole with
> anything.

   Drill an ugly 1/2 hole and expand it with a dremel?

   Cutting torch?

   How clean does it have to be? Are you mounting something that needs a 
3/4" hole but is actually covering a 1" circle?

   The real way to do it is a Greenlee punch, but they are expensive to 
do one job.