Heavy duty jaws lock on to three sides of a hex fastener and will not slip or mar. Designed to replace up to 16 wrench sizes. Includes a built-in wire cutter. Turn screw to adjust pressure and fit work. Stays adjusted for repetitive use. Constructed of high-grade heat-treated alloy steel for maximum toughness and durability. Guarded release trigger quickly unlocks and protects from accidental release. Tool Type: Locking Pliers; Application: Aircraft Maintenance; Automotive Maintenance; Building Maintenance; Carpentry; Construction; Electrical; HVAC; Stationary Engineering; Applicable Material: Metal; Plastic; Wood; Jaw Material: Steel.