Plate Clamp Working Load Limit 9 921 lb Attachment Type Load Ring with Chain Open Type Automatic Close Type Automatic Minimum Material Thickness 1 5/8 in Maximum Material Thickness 3 1/8 in Minimum Jaw Opening 1 5/8 in Maximum Jaw Opening 3 1/8 in Material Steel Clamp Type Plate Clamp Operation Horizontal Lift Vertical Lift Attachment Diameter 2 5/8 in Grip Type Teeth Overall Height 15 1/2 in Overall Width 10 5/8 in Overall Depth 5 7/8 in Standards ANSI B30.20