A rotary tool, such as an impact wrench, operable in a forward mode and a reverse
mode. The rotary tool includes a housing having a forward end and supporting a
motor. The motor has a motor shaft extending axially through the housing and defining
an axis. The rotary tool also include a frame supported in the housing and being
rotatable relative to the housing about the axis, an output shaft supported in
the forward end of the housing and rotatable about the axis, and a hammer pivotably
coupled to the frame and defining a central aperture. The hammer has a first jaw
and a second jaw extending into the central aperture. The first jaw and the second
jaw are non-symmetrical.
