I saw a previous comment saying you can't get the sawzall and circ saw into the jobsite box together. I don't know about the fuel but non fuel fits with no issue except you can't get the tray in and that works fine for me as I put the extra tray into another jobsite box I use for carpentry tools. I've got M18 6.5 circ, sawzall, hammer drill, impact, M12 multi tool, compact driver, flashlight plus 12/18 charger, 3 M18 & 3 M12 batteries & bits and blades for all of it. Not much room to spare after all that though