To smoothly turn a wrench tool in the transverse direction by constituting a housing wrench turning part of an inclined hole wrench turning part having the inclined housing direction relative to the longitudinal direction of a rod-shaped body.

A first housing part 4a locked to an inclined hole wrench turning part 4 is drawn out of a wrench tool 1, a second housing part 4b to be locked to the inclined hole wrench turning part 4 is housed in the wrench tool 1 while the wrench tool 1 is in the original condition, and then, the wrench tool 1 is transversely turned in the direction (a) until a handle part 3a is brought close to an obstacle 7 or abutted on the obstacle 7. Then, the handle part 3a is reversed around the wrench tool 1 in a condition where the second housing part 4b is housed on the wrench tool 1, and the handle part 3a is transversely turned to further transversely turn the wrench tool 1 in the direction (c).