A fastener driving tool comprises a tool body, a muzzle extending forwardly from the tool body and being displaceable into a ready-to-fire position, a magazine for holding fasteners coupled to the muzzle, and a follower within the magazine that biases the fasteners. The follower has a blocking surface that blocks the muzzle during fastener-empty condition and prevents the muzzle from displacing into ready-to-fire position.
In a fastener-driving tool with a magazine, a nosepiece, and a driver blade slidably reciprocating relative to the nosepiece for driving fasteners, a mechanism for preventing jamming includes a follower slidably disposed inside the magazine for urging fasteners toward the nosepiece, and having a formation for engaging the driver blade and preventing driver blade reciprocation after the last fastener in the magazine has been driven.
A fastener-driving tool includes a combustion power source configured for driving a driver blade linearly towards a workpiece, and an electrical power source associated with the combustion power source for rotationally driving the driver blade upon completion of the linear travel, both power sources being disposed in the tool.
