If you work in a manufacturing plant as a maintenance tech, there is a good chance that you have some large tools such as giant wrenches, specialized tools for particular pieces of equipment, etc. For that reason I would suggest a Snap-On box or similar, with 27" deep drawers.
But it really depends on what your budget is, how many tools you need to store, how secure is the place in terms of people messing with your tools, etc etc etc... All of these factor into the decision making process.
