To provide a hexagonal spanner capable of re-setting at a minor angle, compared with a conventional hexagonal spanner which must be re-set at 60deg.

Each end of a hexagonal spanner concerned is bent in L-shape, and they are twisted relative to each other. With a conventional hexagonal spanner, only one L-bent part exists to serve for turning a screw, and it must be put in a place 60deg. turned when re-setting is made, and it was not possible to rotate if the given space is narrow. According to this invention, the two L-bent parts may be used alternately, and turning can be made bit by bit by changing the re-setting angle of rotation. This may be used in combination with an ordinary hexagonal spanner to permit driving a screw bit by bit and tightening.