Stanley 83-039 12-Inch Bailey Parallel Bar Clamp 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 Limited Lifetime Warranty