Strong Hand L & F-Type Sliding Arm Clamps Handle Style: T-Handle Style: Regular-Duty Minimum Capacity (Decimal Inch): " Maximum Capacity (Inch): 12-1/2 Throat Depth (Inch): 4-3/4 Nominal Clamping Pressure (Pounds): 1200 Nominal Rail Size: 1 x 15/32 Series: UG Manufacturer Part Number: UG125-C3