Irwin® Vise-Grip®, The Original™ 20 Locking C-Clamp, Swivel Pad, Alloy steel, Nickel Plated, Capacity: 3-3/8 Inch, Throat Depth: 2-5/8 Inch, Length: 11 Inch, Jaw Type: C-Clamp, Locking Mechanism: Adjustable Mechanical Lock