What are the parts of the rack clamp?

	The rack clamp consists of a frame, two jaws, a screw, a handle and a spring.
Cart
	The frame is also known as the pivot and is the largest part of the clamp. Typically, one end curves to form a fixed jaw, while the moving jaw rests on the other end of the frame and can move along it.
	The length of the frame determines how wide the pole clamp jaws can open.
Jaws
	The purpose of the jaws is to grip the workpiece during clamping. The rack clamp has two jaws parallel to each other.
	One jaw is fixed and cannot move. The other jaw is movable and can be adjusted to allow the jaws to open and close. The moving jaw is spring-loaded, which means that when the spring is pressed, the jaw is loosened and can be moved to another position. It can also be detached from the frame and flipped for versatility.
	The movable jaw usually has a groove on its surface to allow the clamp to grip tubular or irregularly shaped objects.
Spring
	The rack clamp has a spring that allows you to adjust the movable jaw when pressure is applied to it. Similarly, when the pressure is released, the spring keeps the jaw in a stable position.
Screw
	The rack clamp has a small built-in screw that controls the movable jaw by applying pressure to the spring as it rotates. At the end of the screw there is a collet through which the handle passes.
Processing
	The handle is used to rotate the built-in screw and adjust the movable jaw. A rack clamp usually has a long, thin handle with a sliding pin, making it easy to gain extra leverage when tightening the screw. Turning the handle counterclockwise opens the jaw, while turning it clockwise closes the jaw.