Spanner for cooperation with hexagonal nut or screw head has spanner head provided with 2 jaws of unequal length having different engagement points for rotation through 30 degree steps

摘要

The spanner has a one-piece spanner head (1) and a rigidly attached grip (2), the spanner head having a shorter jaw (3) with a front engagement point (4) on its inside and a longer jaw (5) with a rear engagement point (7) on its inside face and a front engagement point (6) at its front end, spaced from the rear engagement point by a concave recess (12).