Cincinnati C-Clamp Super JR. No. 51 1.0 inch
This is a nice vintage of 1.0" capacity C-Clamp with the extended reach, or deeper throat, marked "Cincinnati Tool Co. No. 51 Super JR." on one side of the frame, and "FORGED STEEL HEAT TREATED MADE IN U.S.A." on the other side. It is in very good useable condition with no rust, straight, not bent, good threaded rods. We note the threads have some machining ding and very small grind marks, but the threaded rod move all the way in and out with no problems. This type of C-Clamp is about the best type of machinist clamps one can buy due to the process of heat treating the steel.