https://www.ebay.com/p/1338894231
I ran across this ad and was reminded that I have worn out several of those ratchets over the years and they have saved me a lot of grief. When installing a part like a water pump, timing cover, transmission pan, etc., with many bolts that are best tightened gradually in a criss-cross pattern that tool can take you to the next to the last pull on each bolt and it is easily turned compared to swinging a ratchet.
Must be a misprint or something. I don’t see any place for an air hose to attach. Another one similar is a palm nailer but that comes with a place for an air hose. I don’t have one but would come in handy once in a while in tight spots but then who pounds nails anymore when there are screws and nail guns?
I thought the standard procedure for those was to use an air tool to tighten the bolts until they are loose and then one more turn. 
I’ve heard that method makes for a quick promotion @asemaster. You know, UP-N-Out the door.
