All the adapters you could need. Well, except 1 1/2 inches, but anything big is a bit specialized. I've used them with a 1" percussion gun and a 600 ft-lbs torque wrench. There were no more slops than expected. while aligning ball and jack. Also, the matte black finish is less slippery than chrome, which is handy for removing adapters from torque wrenches or ratchets/extensions without "quick releases". for $8 if/when you end up busting one (10 foot impostor or shrinking a 1 inch gun down to 1/2 inch) or whatever people do when they have rusty bolts just buy it a new kit. You can get three sets for the price of a Snap or Mac adapter (3/4-1/2 will most likely break). If you break the same adapter three times, buy a cutter. I have a Proto 3/4 - 1/2 adapters, that alone was $20 which is good but they are stamped "NOT GARANTEED" right on the spot.