| 摘要 |
PROBLEM TO BE SOLVED: To enhance operability at the fastening of a nut to an internal peripheral side of an outer socket, related to a shear wrench which is a fastening tool for fastening a nut to a shear bolt, and makes a user hardly receive a reaction of the fastening by cutting a chip part at a fastening final stage, and absorbing reaction torque.SOLUTION: Marks 18d to 18d which indicate angle fitting parts 18c to 18c to which corners of a nut are fit are formed at an external peripheral face of an outer socket 18. A user can speedily fit the nut into the outer socket 18 by position-aligning the marks 18d to 18d to the corners of the nut, and thereby can speed up fastening work. |
