Patent ID: 6863134

Claim:
A method of operating a rotary tool, the rotary tool including a housing having a forward end and supporting a motor, the motor having a motor shaft extending through the housing and defining an axis, a frame coupled to the motor shaft and being rotatable relative to the housing about the axis in response to rotation of the motor shaft, the frame defining an internal space, a piston supported in the internal space for rotational movement with the frame about the axis and for axial movement relative to the frame along the axis, and an output shaft supported in the forward end of the housing and being rotatable about the axis, the method comprising: engaging a fastener with the output shaft; rotating the housing about the axis with the motor shaft; transferring rotational motion from the housing to the piston; reciprocating the piston in the housing along the axis; cammingly engaging the output shaft with the piston; and transferring rotational motion from the piston to the output shaft.