
I have had allen keys and it was always a pain to use them. It took a long time to place the key, turn it slightly, and then rearrange it again. These sockets allow me to use my ratchet wrench, put the hex head in the bolt and just wiggle it back and forth until the bolt is tight. These bits fit my ratchet handles and make the job quicker and a lot easier. Indeed a mandatory set of outlets.