Hex Socket Bit Set Lock-On™ 8pc 1/4" & 3/8"Sq Drive Metric

Professional heat treated Chrome Vanadium steel sockets. S2 Steel hex bits with a zinc phosphate finish. Removes rusted, damaged and severely rounded hex head fasteners with ease. Patented twist design grips tighter as they turn preventing fasteners from rounding. Supplied on a metal socket rail.