IRWIN ITEM 01T IRWIN VISE-GRIP locking pliers feature Fast Release for quick opening, a no-trigger release and 1-hand operation IRWIN pliers have straight jaws to provide maximum contact on flat, square or hex work Pliers are 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