First, trace a slot on the top of your lid with a marker.
Using a hammer & the nail, you're going to puncture along your marker line. I taped my lid to the top of the ring to stabilize it & give it some room underneath for the nail to go through. Just hammer the nail in, then pull it out to make each hole.
Hammer as many holes as you can along the line.
You should be able to remove the metal piece in the middle of your lid as shown to the right. If it resists, use your pliers to yank it out (bending the metal back & forth worked for me to remove it).
Using the wire cutters, cut off any jagged bit of metal remaining.
Then cover your lid with masking tape, making sure to cover the cut metal. This way you won't cut yourself on the lid later!