IRWIN Tools VISE-GRIP Locking Pliers Set, Fast Release, 3-Piece with Kitbag (1771882) One-handed, trigger less release is twice as easy to open as the traditional design. Constructed of high-grade heat-treated alloy steel. ProTouch grip provides maximum torque with greater comfort and less hand fatigue, and is slip resistant. Adjust pressure and work fit with turn screw that stays adjusted for repetitive use. Includes 10WR, 7WR, and 5WR curved jaw pliers with wire cutters and kit bag.