I just started in the bike mechanic world and just bought a tool box that i really like. I don't have a lot of tools but the top of the box has 20 trays that are big enough to fit parts such as freewheel tools cassette tool, lube, chain tool, and more importantly different parts, screws and whatever the bottom is all open and i was able to fit the chain whip, pedal wrench, degreaser, socket set, wrenches, and more parts there. There is more in there just can't remember off the top what is in there but i have plenty of space still. Got it at home depot for 30$. Like it was said depends on if you are going to work on it different places. I work on my bike different places so i have a tool box with a repair stand that can also be taken places.