Which pliers are designed to clamp onto and hold objects of various shapes?

Wrench or vise-grip pliers are specifically designed to adjust and clamp onto objects of varying shapes. Their unique mechanism allows the user to adjust the jaw opening, enabling the pliers to grip a multitude of sizes and shapes securely. This versatility makes them ideal for tasks where a stable hold is required, like gripping nuts, bolts, or irregularly shaped objects.

The design of wrench or vise-grip pliers includes a locking mechanism that can maintain pressure on the object being held, which provides the advantage of hands-free operation once the grip is secured. This feature is particularly useful in situations where a firm grip is crucial for safety or efficiency in tasks, such as welding or assembly work.

In contrast, the other types of pliers serve different functions. Slip-joint pliers are adjustable but are generally limited to certain shapes due to the nature of their design. Cutting pliers are intended for severing wire or similar materials, while long-nose pliers are better suited for reaching into tight spaces and bending wires rather than gripping objects of various shapes.