Tongue-and-groove pliers provide a wide jaw-capacity range to grip and turn pipes, fittings, fasteners, and other items. Also known as multigrips and groove-joint pliers, they have an adjustable pivot point for moving their lower jaw up or down a grooved channel to set the distance between the jaws. The jaws lock into place at the desired setting, remain parallel to maintain grip, and are angled from the handles to increase leverage. General purpose tongue-and-groove pliers are used for everyday applications where special environment pliers aren't required. Insulated tongue-and-groove pliers have non-conductive handle grips to protect against electrical shock when working near electrical components and energized equipment. Non-sparking tongue-and-groove pliers resist creating sparks and reduce the risk of ignition when working in areas where combustible dust or flammable liquids, gas, or vapors are present.