Tolsen industrial straight jaw pliers are made of Chromium-vanadium tool steel and are nickel-plated to ensure long-term durability and protection against corrosion. One side of the handle includes a bolt that is used to adjust the spacing of the jaws. The other side of the handle includes a lever to push the two sides of the handles apart to unlock the pliers. The jaws are set to a size slightly smaller than what is to be gripped by turning the bolt in one handle with the jaws closed. Can also lock materials onto the jaws and be used as a holder for the work material that shouldn’t be touched. These Mole locking pliers have straight jaws and are used to grasp and secure any type of flat surface object, as well as nuts and bolts. Straight jaw grips can also hold hexagonal objects and straight side objects.