Hand-held power tool

A hand-held power tool comprising a housing having spaced front and back walls, an output shaft mounted in said housing for rotation in one direction or the other on an axis extending transversely with respect to said walls, said shaft having an outer end portion projecting out from the front wall for reception of an attachment for the tool, a ratchet wheel on said shaft in the space between said walls, said ratchet wheel being adapted to be driven in one direction or the other for rotating the shaft in the one direction or the other, said ratchet wheel having a side face facing a fixed surface on one of said walls and a plurality of recesses extending inward from said side face spaced at intervals around said axis, and a plurality of coil compression springs, one in each recess, a cylindrical pin for each of said coil compression springs, each cylindrical pin being engaged by a corresponding one of said coil compression springs for biasing the pin outward from the recess against said fixed surface for holding the ratchet wheel against rotation in a direction opposite the driven direction of rotation.