The Eclipse Heavy Duty Parallel Jaw Metalworking Clamps are capable of up to 2,600 lbs. clamping force depending on the size. High quality steel bar ensures optimum strength while a hex design screw end reinforces clamping. The heat-treated circular pressure clamping plate features a full ball type support which may be tilted 35 degrees to withstand heavy duty working and giving the ability to clamp awkward shaped work pieces. Ideal for heavy duty metal working and welding applications. 5-1/2" Throat Depth.