This particular hole punch set is for the 22mm hole punch.
To use this type of hole punch you simply use a drill but such as this stepped drill bit to drill a pilot hole.
Place bolt through hole.
Attach die and punch together from punch kit.
Use ring spanner to tighten bolt.
Keep tightening the bolt until you hear the click sound of the punch passing through the steel.
Remove the assembly from the hole and screw the die and punch set apart.
Throw away the slug
Admire the perfectly clean hole that you have just made in the sheet metal. No further filing or cleaning up of the hole is required.