CM Plate Clamp, ECH3KR34, Plate Clamp, 3300 Lbs., VerticalPlate Clamp, Operation Vertical Lift, Safe Working Load 3300 lb., Jaw Capacity 0 to 3/4 In., Locking Type Load Activated, Jaw Material Hardened Steel, Lifting Point Load Ring, Standards ANSI/ASME B30.20