Originally Posted by Seadog

Because cases like these are clues that what is inside is valuable, I like to keep them inside a standard storage bag during travel. Of course, I do things a little differently. I have one large tackle box that has been my electrical tool box for years. And a small tackle box I modify into a portable laboratory. A lot cheaper than the dedicated boxes that do the same thing, and they often are handier.

I"ve done the tackle box too but they were a little flimsy for heavy tools.

When I built and repaired sailboats 20 years ago, I lost expensive tools to the water. After that I've used big coolers as toolboxes. They would float for a while before sinking, leaving ample time for retrieval. The trick was to make sure it was properly closed at each tool use.

Polyethylene would be my number one choice for a case. Cheap, resistant and practical.