The Crescent pass thru adjustable wrench Set is 3 tools in 1. It can be used as a standard adjustable wrench that has Maximum 1-1/8 inch. Jaw capacity or the jaw on the wrench head can be easily removed and reversed turning it into an adjustable pipe wrench with up to a 1 inch capacity. On the opposite end, the traditional hang hole has been transformed into a ratcheting pass thru ratchet head that can be used with the included SAE or metric universal sockets.