IRWIN Tools VISE-GRIP Locking Pliers Set, Fast Release, 5-Piece (538KBT) 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 1 each of the following: 10R, 10CR, 7WR, 5WR, 6LN.