In a fastener-driving tool equipped with a fastener magazine, and a power
source including a reciprocating driver blade for driving fasteners
obtained from the magazine into a workpiece, and a reciprocating valve
sleeve actuated by a cage, a nosepiece is provided, including a nosepiece
body configured for attachment at one end to the fastener tool and
defining a fastener channel constructed and arranged for receiving the
driver blade and the fasteners sequentially fed by the magazine, the
fastener channel having a fastener outlet. A tubular pin guide is
disposed for reciprocal movement in the fastener channel for receiving
fasteners traveling toward the outlet. A unitary actuator has a first end
engaging the pin guide for common reciprocation relative to the nosepiece
body and a second end engaging the cage.