OTC 6720 Flare Nut Locking Pliers Set This set comes in a 3 pack Fits standard or metric nuts and bolts Includes 6720-1 covers 1/4 inch to 5/16 inch (6mm to 8mm) Includes 6720-2 covers 3/8 inch to 7/16 inch (9mm to 11mm) Includes 6720-3 covers 1/2 inch to 5/8 inch (12mm to 16mm)