Small-torque bending wrench

The utility model belongs to the technical field of precise torque tools, and particularly relates to a small-torque bending wrench. The utility model provides a small-torque bending wrench which comprises an opening head, and the opening head comprises a working part and a connecting part. The bending lever is fixedly connected with the opening head; the wrench shell is arranged to be of a hollow cylinder structure; and the far end of the wrench shell is rotatably and fixedly connected with the bending lever. The utility model provides a small-torque bending wrench, which is used in the screw tightening process of occasions with higher torque output precision, and is particularly suitable for occasions with higher environmental noise, and through the matching of a spring, a sliding core and a steel ball, when the torque reaches a set value, an opening head and a wrench shell are suddenly bent, so that the torque output precision is improved. A user can obviously feel from the hand feeling and can clearly obs