The Eclipse Heavy Duty Parallel Jaw Woodworking Clamp features metal reinforced plastic housing for maximum strength capable of achieving up to 1,300 lbs. of clamping force dependng on the size. An anti-slip system on the high quality extra strong profiled steel bar prevents the clamp from slipping in use. The large parallel clamping surface with protective pads ensures even distribution of force and protection of delicate workpieces and the clamp may be easily converted to a spreader without the need for other tools. An ergonomic handle ensures comfortable use. Ideal for heavy duty wood working applications such as furniture and cabinet manufacturing. 3-3/4" Throat Depth.