Abstract: A pneumatic tool includes a motor, a drive mechanism connected to the motor and adapted to drive a piston, and a cylinder filled with high-pressure gas. The piston is accommodated in the cylinder and suitable for a reciprocating motion within the cylinder. The piston is connected to a striking element suitable for striking a workpiece. The drive mechanism includes a blade fixed to the piston and a gear coupled to the motor. The gear includes a plurality of teeth adapted to engage with a plurality of lugs on the blade such that a rotation of the gear is transformed to a linear movement of the blade. The pneumatic tool further includes an electronic device adapted to lock the blade.