Rolling tool bags have wheels and an extendable handle to pull heavy tools and parts from one location to another. They have a fabric shell over a metal frame, which holds the bags open for easy loading and unloading. Their large center compartment holds bulky items while their smaller inside and outside pockets organize small items. The inside of the bag is padded to protect tools during transport. To maximize capacity, another tool bag or additional equipment can be stacked on top of the rolling bag and supported by the extended handle.