Is the 330 lbs capacity per drawer or total?

It is the chest's total load rating across the drawers and top compartment, not a per-drawer figure. Spread heavy tools across drawers rather than loading one heavily.

Does the lock secure all the drawers?

The chest has a locking system for the drawers and lid. Check the lock position on arrival and keep the key safe, since a lost key means drilling or a locksmith.

Will it fit under a workbench?

It is a compact chest, so measure your bench clearance and the chest's footprint before buying. It is designed to sit on a bench or floor rather than roll.

Can I move it once it is loaded?

There are no casters, so it is meant to stay in place. Empty it before lifting, and get help since a loaded steel chest is heavy.

What is included in the box?

The chest, drawer liners and keys for the lock. Tools and organizers shown in lifestyle images are not included.

How does it compare with a rolling tool cabinet?

A rolling cabinet gives more depth, more drawers and mobility. This chest trades those for a smaller footprint and a lower total capacity, which suits bench-top and light workshop use.