I'm finally getting around to beginning the process of shadowing my tool box. I'm using Hansen trays for my regular sockets. I want to make holes in the kaizen foam to place my allen sockets and flex sockets. What do you guys use for such a thing? I've read everything from freezing the foam and using a paddle bit, to making punches for it. I want to have a successful plan of attack before I order the foam. Thanks.

Probably best not to dwell on that too much.