What is the purpose of a locking plier wrench?

• A. Used to lock and hold bolts and nuts
• B. Used to measure torque
• C. Used to cut wires
• D. Used to drive screws

Answer: (A)

Locking plier wrenches are designed to clamp onto a fastener and hold it securely. They have an adjustable screw to set the jaw tension and a locking mechanism that keeps the jaws clamped once you squeeze the handles. This lets you grip bolts or nuts firmly, even if you’re working with slippery or stubborn fasteners, and often frees your hands to apply torque or to keep parts in place. They’re not used to measure torque, cut wires, or drive screws—those tasks use a torque wrench, wire cutters, and a screwdriver (or driver).