Sealey sa616 air ratchet wrench reactionless 1 2in square drive sealey sa616 p this air ratchet wrench from sealey has been manufactured with a composite covered handle to help reduce chill and vibration patented reactionless drive mechanism which stops the handle snapping away when tightening bolts preventing wrist injuries enclosed ratchet head gives added strength and allows for high torque reaching up to 75lb ft 102nm p p free speed of 450rpm faster than traditional ratchets d