Strong Hand 4-IN-1 Utility Clamps The Only Sliding Arm Clamps in the industry with the removable/reversible clamp arm, and the threaded jaw hole for adding exclusive Strong Hand accessories. The 4-IN-1 Clamp adapts to create a: Pipe Clamp, Spreader Clamp, and Step-Over Clamp. 1 Clamp...4 Applications. The V-Pad & Extender Block are NOT included with this clamp (C3), but can be purchased separately.