| 摘要 |
PROBLEM TO BE SOLVED: To provide a fastening device having an external diagnostic function capable of confirming simply from the outside whether a torque sensor detects a torque correctly or not.SOLUTION: A connection part 110 positioned on the elongation of a shaft center line C of a driving shaft 93 and on the rear end side is provided on a casing 100. A torque wrench 200 can be mounted on/dismounted from the connection part 110. |
