As long as you aren't worried about anyone that has a drill getting in.
I'm going to be out in the public, and it's them that I am worried about picking up a tool and pocketing it, when I'm not there.
There shouldn't be anyone with a drill near me at all, ever, not even other workers.
I'm calling it a tool crate, but Fort Knox for short.
I added some corner brackets as I was a little concerned that the thing would/could separate when moving it. Now it is even heavier.
But when we move it, from site to site, it will be empty. Then I'll load it up with my tools after it is placed where I want it.
At night time all tools will be locked in trunk of car.
Should work, but we'll see.