Pneumatic tools rely on which type of power?

Pneumatic tools specifically rely on compressed air as their power source. The design of these tools utilizes the energy derived from compressed air to perform various functions, such as drilling, cutting, or fastening. Compressed air is stored in a tank and released through the tool, creating pressure that powers its operational mechanism. This method of operation allows for significant force generation while often reducing the weight and complexity compared to electric or hydraulic tools.

The other options do not apply because liquid power, mechanical power, and solar power operate under different principles. Liquid power typically refers to hydraulic systems that use fluids to transmit force, while mechanical power involves direct human or mechanical force applications, and solar power relates to energy generated from sunlight. Hence, the reliance on compressed air is what fundamentally differentiates pneumatic tools from tools powered by these other energy sources.