• 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; 3-6mm, 3/8"Sq Drive; 7-10mm.
• Supplied on a metal socket rail.
• Lifetime guarantee*.