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

• 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*.