• Includes 12-24 mm sockets • Sockets using the Flank Drive® Xtra wrenching system grip the fastener on the angled flats, delivering up to 20% more turning power than current Flank Drive® sockets • Flank Drive® Xtra wrenching system grips fasteners with the angled contour of the socket wall, delivering higher strength and up to 50% more turning power on damaged fasteners • Optimally grooved wall eases socket removal and incorporates large identification marking • Manufactured from the highest quality domestic steel, providing optimum strength and durability • Nickel-chrome finish resists rust and corrosion