| 摘要 |
PROBLEM TO BE SOLVED: To perform screwing surely by preventing breakage when a spring plunger is screwed in.SOLUTION: This wrench is composed of: the wrench body 2 on which a through-hole 6 is formed on one side, a cylindrical void 2a is provided on the other side and also a groove-like plate mounting groove 4 is formed; a clamping part 3 in which a through-hole 7 is provided in the middle part, which is fixed to one end side of the wrench body 2 with a first setscrew 8 and with which the wrench body 2 is rotated and a plate 5 on the other side of which a clearance groove 11 is formed, which is constituted so that the top part 12 on the other side is fit into the groove of the spring plunger and attachable to and detachable from the wrench body 2. The spring plunger is rotated by inserting the plate 5 into the plate mounting groove 4 and fixing the plate 5 to the wrench body 2 by fitting the top part 12 to the groove. |
