Flare nut ratchets: the wrench opens to pass around the pipe and closes down on the nut for optimum grip. The special shape of the wrench allows for a ratchet effect.
Fast tightening on all piping in automotive, trucking, public works, compressors, refrigeration, aeronautics, sanitation.
12-point head
Hanging hole at end of handle: wrenches stored on panel or hung to avoid loss or fall.
satin chrome handle / burnished head.