General description Sealey AK7985 Premier Black TRX-Star/Hex/Spline Socket Bit Set is a professional-grade toolset designed for durability and efficiency. This 22-piece set features heat-treated Chrome Vanadium steel sockets, ensuring long-lasting performance even under heavy use. The set includes a variety of TRX-Star, Hex, and Spline bits, making it versatile for various applications. Technical specifications Material: Chrome Vanadium steel Finish: Fully polished black chrome with machined and lacquered surfaces Contents: 3/8"Sq Drive Socket Bits Spline sizes: M4, M5, M6, M8, M10, M12 TRX-Star sizes: T10, T15, T20, T25, T27, T30, T40, T45, T47, T50 Hex sizes: 4, 5, 6, 7, 8, 10mm Model No.: AK7985 Compatibility and accessories Supplied in an EVA storage tray for organized storage Usage This socket bit set is suitable for daily professional use, making it ideal for mechanics and DIY enthusiasts alike. The knurled ring design assists in gripping the socket, even with oily fingers,