EXTEND YOUR REACH - 6-point socket on a pinless, swivel-headed 9-inch extension that allows for easy access in tight spaces HIGH STRENGTH - Made from high strength, heat-treated 4140 chromoly steel CORROSION RESISTANT - Black oxide protective coating provides increased corrosion resistance KNURLED SHAFT - Knurled shaft allows for easy hand-starting and tightening of fasteners to prevent cross-threading MAXIMUM TORQUE TRANSFER - Pinless joint design transfers maximum torque from driver to socket WIDE RANGE OF MOTION - With a wide range of motion more angles are available to work from making it easier to reach fasteners INCREASED SAFETY - Pinless design prevents projectiles common to pinned designs in the event of breakage