Strong Hand Tools, Utility Bar Clamp, Light Duty, Capacity: 12-1/2″ (216 mm), Throat Depth: 4″, Clamping Pressure: 850 LBS (390 kg), Rail Size: 25/32 x 3/8″, UE125
The Utility Clamp from Strong Hand Tools can be set-up 10x faster than a C-Clamp. Features Spring Stop.