These clamps are useful in layout work or for holding work securely in drilling and other similar operations. Each clamp is furnished with two take-up blocks that slip on the end of the screw. The blocks are held to allow a slight swivel action which conforms the angle of the block to the shape of the work being held. There is a hole in the base of the clamps so that they may be fastened to the bench and used as a small vise. Clamps are made of case-hardened steel and are smoothly finished.
