Pneumatic tool

A pneumatic tool comprising:

• a drive part including a striking cylinder and a striking piston movable inside the striking cylinder by compressed air;
• a trigger configured to perform a first operation of operating the drive part;
• a contact member configured to perform a second operation of operating the drive part;
• a timer piston movable from a timer measurement start position to a timer measurement end position;
• and
• a timer switch configured to operate by the first operation being transmitted using a transmitting member, wherein
• the timer piston is configured to start moving from the timer measurement start position toward the timer measurement end position by the timer switch operating by the first operation,
• the timer piston is in one operation mode of allowing the drive part to operate by the second operation while the timer piston moves from the timer measurement start position to the timer measurement end position, and
• the timer piston is in another operation mode of prohibiting operation of the drive part by the second operation after the timer piston arrives at the timer measurement end position, and
• when a striking operation is performed by moving the striking piston of the drive part, the compressed air inside the striking cylinder is supplied, thereby moving the timer piston to the timer measurement end position.