locking pliers
noun (usually used with a plural verb)
pliers whose jaws are connected at a sliding pivot, permitting them to be temporarily locked in a fixed position for ease in grasping and turning nuts.
Words nearby locking pliers
locket,
lockfast,
lockhart,
locking piece,
locking plate,
locking pliers,
lockjaw,
locknut,
lockout,
lockout box,
lockpick