Cutting Holes In Sheetmatal

[Hawkeye]

When I'm doing service upgrades, I sometimes need holes around that size. I've done it quite a few times with a hole saw. Since I'm not in my shop at the time, I use my 1/2" battery drill (on slow, of course). It's always worked for me. The metal thickness is around what you have, maybe even thinner. It's not a really precise hole, but a mill/drill should do better.