Hex keys of the highest quality are essential tools for top motorsport or Pro-Tour mechanics. They are made from shock resistant S2 tool steel, which has been carefully refined to provide strength, hardness, and dimensional control. These keys are coated in chrome and a textured polymer finish to ensure maximum grip and control. The HX-ONE ESSENTIAL KIT also includes a proprietary SILCA 17-4 Stainless Magnetic Adapter, which transforms the 6mm hex key into a 1/4" bit driver. The kit comes in a CNC machined Beechwood box with magnetic closure, and includes a variety of S2 steel hex keys, Torx® bits, and screw bits.