Patent ID: 6931969

Claim:
An adjustable spanner, comprising a main body having a first end formed with a handle portion and a second end with a drive portion having a fixed jaw, and a movable jaw movably mounted on the drive portion relative to the fixed jaw, the movement of the movable jaw being not along an axial line of the handle portion, wherein the adjustable spanner further comprise a torque detection device mounted on the main body to detect a torque of the adjustable spanner; wherein the torque detection device includes two opposite first strain gauges mounted on and fitted into an inner side of the fixed jaw and an inner side of the movable jaw respectively and a second strain gauge mounted on the connection of the handle portion and the drive portion; wherein the torque detection device includes an indication unit mounted on the handle portion and connected to the strain gauges to indicate the detected torque values of the adjustable spanner in a digital manner; and wherein the indication unit is provided with two adjusting knobs to switch torque values detected by the first strain gauges and the second strain gauges so as to obtain the detected torque values of the adjustable spanner exactly.