he ProTek R/C "TruTorque SL" 8.0mm Metric Nut Driver features a large 20mm diameter handle with machined relief holes and cross hatch knurling to reduce weight and provide a high grip surface. The end of the handle features a rotating end cap that allows the tool to spin in your palm, maximizing comfort during long wrench sessions. Plus, the tip size is laser etched in not one - but the THREE different spots on the handle to help simplify identification. The precision cut tool steel tips provide an exceptional fit with the fastener, and feature a bronze colored finish that not only looks good, but also helps to protect the steel from corrosion.