Clamping can help hold work securely in place temporarily till it dries or sticks together. They have applications in many industries such as woodworking, furniture making, welding, metal works, and carpentry. Mainly clamps help hold the thing together or keep it steady. For example – c-clamps keep two pieces steady till they dry. A bar clamp helps to stick two pieces of wood together or hold its place till the glue dries. On the other hand screw clamps are mostly for metal works, and it also keeps small pieces in one place till you are done welding.