Which type of tools use pressurized liquid to transmit force?

Hydraulic tools operate by using pressurized liquid to transmit force, making them highly effective for a variety of applications such as lifting, cutting, and pushing. The fundamental principle behind hydraulic tools is Pascal's Law, which states that pressure applied to a fluid in a confined space is transmitted undiminished in all directions. This allows hydraulic tools to amplify force, making them particularly useful in heavy machinery, automotive repairs, and industrial applications where substantial power is required in a compact design.

In hydraulic systems, fluid is contained in a cylinder and can be directed through hoses and valves. When force is applied to the fluid in one part of the system, it creates a corresponding force in another part, effectively allowing operators to lift or move heavy objects with less physical effort. This characteristic distinguishes hydraulic tools from other types such as mechanical or manual tools, which may rely on physical exertion or mechanical advantage without the use of pressurized liquids.