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*.