The C clamp, also known as a caliper, is shaped like the letter "C" and is ideal for strong, tight clamping of smaller parts. The clamp works on the principle of a screw mechanism that exerts high pressure between the jaws. It is mainly used for gluing joints, holding the workpiece to the work surface or temporarily clamping material during drilling or milling. Due to its simple design and robustness, the C-clamp is widely used in both joinery and metalworking.