HobbyStar 4pc. Ball-End Hex Driver Set, Metric, For Hobby and RC HobbyStar hex-drivers are crafted with a lightweight aluminum handle that features 6 raised, ribbed surfaces that provide excellent grip on the tool while reducing fatigue with extended use. A plastic plug on the end further protects your hands during use, and each driver has the size clearly etched into the handle for easy identification. The precision cut, hardened tips fit fasteners snugly to avoid stripping out and are coated with a brown finish that not only looks great but protects the tips from corrosion. Ball end allows tool to be used at an angle for hard to reach fasteners. 4-piece set includes 1.5, 2.0, 2.5 and 3.0mm size drivers. Overall tool length is 185mm.