It can hold different thicknesses of wood until it can't hold.
The swivel jaws and swivel points allow the fixture to rotate and adjust to different wood thicknesses.
Durable aluminum alloy construction, strip screws and independently adjustable jaws.
Very suitable for woodworking, picture frame reinforcement, cabinet, and furniture connection, also for 45-degree sawing.
The handle rotates a bit when it is tightened, adding to the useful design. A little tweaking can make a difference.