Tightening the hex screw expands the jaws outward and downward, preventing workpiece lift. Clamp two workpieces against fixed stops. The low profile and small size allow for faster set up and more parts per load. CP132-A uses a countersunk head screw. CP132-B uses a socket head cap screw. Jaws made from SNCM439 steel, HRC33-39, with a black oxide finish. Washer made from 4135 steel with a black oxide finish. O-ring made from fluoro rubber.