I can fit exactly 47 lbs of tools in this case with the lid accessory. I know this because I travel all over the world as a technician. I have uploaded photos of this case after twenty trips across seas to the Middle East and Europe and the tools that fit in it. I will now list what I carry in this case: 1 Bosch ps-21 hand drill with extra battery and charger, two full sets of drill bits, two sets of security bits, a ferrule crimper, rj-45 crimper, an automatic wire stripper, 2 handheld wire strippers, d-type crimper, coaxial compression crimper, lmr-400 stripper, fiber shears, scissors, screw driver, precision screw driver, 1/4'' socket set, cutters, utility knife, pens, files, center punch, coaxial stripper, cable stripper, fluke pro 300 probe and toner, multimeter, Allen wrenches, 6'' crescent, channel locks, 8-12mm and 1/4''-1/2'' spanners, 2 greenlee crimpall crimpers and die set, punchdown tool, soldering iron, coaxial/cat tester, head lamp, safety glasses, hearing protection, and solder. I hope that I am doing this case justice when I say it is the best case I have found and currently in production at this time. Do I have to organize my tools in roll up pouches and a sensible manner? Yes but who wouldn't? There is nothing I could to do to improve this case unless I spent 3-6 months custom designing a 2nd version of this case with pelican. If you are curious about its capabilities all of the gear I have listed has survived TSA and every other transportation agency I have run into so far.