What is a characteristic of pneumatic tools used in disentanglement?

Pneumatic tools are specifically designed to operate using compressed air, which is a defining characteristic that sets them apart from other types of tools. This reliance on compressed air allows pneumatic tools to be lightweight and portable while still delivering high power for tasks such as disentanglement during rescue operations.

In contrast, hydraulic tools are powered by hydraulic fluid, which is not applicable in this scenario as it refers to a different type of tool. Electric tools require an electrical power source, which again is not a feature of pneumatic tools. Lastly, while some pneumatic tools can indeed be operated manually, they are primarily characterized by their use of compressed air rather than a manual operation. Therefore, the essence of pneumatic tools in this context is their operation powered by compressed air.