The 'Adjustable rotating workpiece clamp' is a versatile tool designed for securely holding objects while they are being worked on. The clamp features an adjustable pivot joint, allowing for 360-degree rotation, which provides optimal angles for machining, welding, or assembly tasks. The robust construction with a heavy-duty metal clamp ensures a firm grip on the workpiece, minimizing movement and slippage during operation. The screw adjustment mechanism allows for precise clamping pressure, and the clamp can be easily attached to a workbench or a tabletop with its base screw. The C-clamp design at the bottom provides additional stability and supports a range of workpiece sizes, enhancing its adaptability for various projects.