The DF-8 is the most efficient hole punch that you will ever own. You will be amazed at how little pressure is needed to punch out holes. With the one and one quarter inch deep throat you will be able to get the best overlap capability for your plug welds.
The deep throat and 6.5mm hole leaves room on the panel edge. Easily cuts up to 18 gauge steel.
Replacement Die Set: DF-8DS