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

- One of a comprehensive range of Premier Hand Tools, suitable for daily professional use. - 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. - Prevents fasteners from rounding. - Sizes: 1/4"Sq Drive; 1/8"-3/16", 3/8"Sq Drive; 7/32"-3/8". - Supplied on a metal socket rail. - Lifetime guarantee*.