Drilling Accurate Holes in Thin Sheet Metal With Twist Drills

[jonlegrand1]

Thank you for sharing. This is a good technique if you're in a pinch, however, I would not do this on a regular basis. Using a sheet metal punch is much safer and no risk of a very sharp-edged piece spinning.

I picked up a used Pexto no. 5 punch for $25 (I think) earlier this year. It's from the late 1930s. Still work fantastic. A perfectly punched hole every time in sheet metal. New these punches are $80.

pexto 5 punch for sale | eBay
Pexto 5 Jr Hand Punch only – Batavia Machinery, Inc (machineryone.com)