Which of the following is an example of a pneumatic tool?

A pneumatic tool is one that uses compressed air as its power source to operate. The correct choice, the air-powered nail gun, utilizes this principle by drawing power from compressed air to drive nails into various materials efficiently. Pneumatic tools are commonly favoured for their power-to-weight ratio, speed, and the ability to operate continuously without overheating, which makes them ideal for tasks requiring repetitive fastener driving, such as construction and woodworking.

In contrast, the other choices do not function through pneumatic means. The electric drill operates using an electric motor, the hand saw is a manually operated tool without any power source, and the battery-operated wrench uses electricity stored in a battery rather than compressed air. Understanding the distinction between these types of tools is essential, as it helps in selecting the right equipment for specific tasks in both professional settings and DIY applications.