Abstract: A wrench for removing stud bolts that are damaged in place, lost the bolt head and/or the bolt shank is broken, basically including a socket assembly having a housing with upper and annular walls, a tubular handle assembly and gripping toothed dog members removably mounted inside the socket assembly. The annular wall has an inner cam-shaped surface with cam members inwardly protruded that limit the angular displacement of the gripping toothed dog members when a user actuates the handle assembly. The gripping toothed dog members are arcuate including a plurality of inwardly projected gripping teeth that grasp the exposed surface of the damaged stud bolt when the user pushes and rotates the wrench assembly.