Bob's tool box is "solidly" constructed. An accidental brush against a sapling is more likely to hurt the sapling than the toolbox. Even then, there were spots of rust-through in the bottom.
WRT the gauge, I wish folks could actually make a standard be standard. I.E. not changing over time, not being a different thickness for the same gauge depending on the type of metal
https://www.metalsupermarkets.com/sh...l-gauge-chart/, not referring to decimal thicknesses by the nearest (but inaccurate) gauge number...