3-3/4" Throat Depth. 48" Clamping Capacity. 52" Spreading Capacity. 54" Bar Length. Oversized jaw faces distribute even pressure over a large area Heavy-duty "I" beam design keeps jaws parallel at all times Unique jaw stop keeps bar parallel to work surface Plastic-covered jaws protect surfaces from marring and damage Quickly converts from a clamp to a spreader without the use of tools Bi-material, tri-lobular handle is comfortable and improves torque