Heavy Duty 6" Quick Grip Clamp with 272kg/600lbs of sustained clamping pressure/holding force. This One-Handed Bar Clamp is ideal for heavy-duty applications such as installation, demolition, and rough glue-up. Dual-removable swivel jaws with removable, non-marring full-face pads provide even distribution of clamping force
How to use https://www.youtube.com/watch?v=ANLcxGOjHRw