15/16in Jaw Capacity - Curved jaw puts tremendous pressure on four points of any style nut or bolt head; includes convenient wire cutter. Ideal for tightening, clamping, twisting and turning. 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. Hardened teeth are designed to grip from any angle.