Multi wrench is specially designed to open sizes frm 8mm to 12mm and 5/16" to 7/16" in SAE from one side and 13mm to 22mm and 1/2" to 7/8" in SAE fron other side. This Wrench in useful fro all types of fasteners in round, square,r ectangle, hexagonal etc. and takes the torque load as per ANSI Standards. It comes with rubber cushioned grip.