4-inch Bar Clamp Set, Bar Clamp for Woodworking, Quick Release Gear Clamp with 600 lbs Load Limit
Maximum Opening Capacity: 4 inches. Throat depth is 3 inches.
Maximum Load Limit: 600 pounds.
Rapid Action: The handy quick release button releases the clamp instantly. With a quick push on the power bar the gear clamp is easy to adjust and release.
Minimal Movement During Tightening: Holds very well and doesn’t cause “shifting” or “twisting” while tightening.
Note: Open the handle to the maximum then slide to clamp whatever your clamping then pull the lever towards the black bar, otherwise it might come loose.