Does anyone have any advice about the drilling of holes in sheet
sterling? I want to do some riveting. Plan A was to use the
flexshaft, with the workpiece on my bench pin. I thought it would be
easy if I did it in stages. First I use a punch to mark the space,
then drill a pilot hole with a #60 wire gauge bit, then use
progressively larger bits to increase the diameter until I had the
hole I wanted. In this case, it would be a #37 bit, making a hole
that will receive a piece of 10 gauge wire.
The pilot hole worked fine. Unfortunately, I find drilling the
larger holes difficult. The bits frequently don’t turn, or turn just
a bit then stall. I have to make several attempts and usually have to
resort to going from zero to full throttle on the foot pedal. I guess
that makes me nervous, with my other hand being so close, holding
onto the work piece. It took me an hour just to drill 8 holes.
I do have a drill press I bought from Rio Grande. However, I’m also
a bit nervous about it. A machinist told me that holding down the
metal with my hand is exceedingly dangerous, because of the chance
that the press will spin the piece out of my hand and slice me in the
I’m working with 12 to 18 gauge pieces that are less than 2" x 2".