This Bessey Bar Clamp is the ultimate tool for heavy duty clamping. It has a maximum jaw opening of 60" and can spread up to 73". The double force sliding arm clamp offers high clamping power. With a throat depth of 4 3/4 in., it can fit into work pieces that are 4 3/4 in. deep. It has a cold drawn German steel bar material, ensuring optimum strength and durability. Its steel handle provides a comfortable grip as you secure your work pieces together. This BESSEY Bar Clamp is perfect for any job requiring tough clamps, so you will want to have one on hand at all times.