Automatic wrench for tying reinforcing wires. The special design of the wrench greatly facilitates and speeds up reinforcement works. A firm pull on the handle results in a three-fold rotation of the hook, and thus the twisting of the reinforcing wire. Product features: high quality ergonomic handle ensures a secure grip of the tool significantly facilitates and speeds up the performance of reinforcement works a certain pull on the handle results in a three-fold rotation of the hook 30 cm long wrench the use of the wrench is much less straining on the wrist