Chrome vanadium and chrome molybdenum jaw components for improved strengthC-Clamps available with your choice of plain tips or swivel padsLocking nut secures jaw position for fast and easy set upExclusive ¼” square drive hole in adjustment screw allows use of ratchet or flex bar to increase clamping pressure in extra heavy-duty applicationsReverse action release lever is easier to operate under pressureExceeds ANSI requirements and industry standards