Felo Torque Screwdrivers have a color-coded ring indicating the torque range that adjusts easily and provides precise release indicated by accoustic and mechanic signal. Ergonomic handle with advanced 2-component design. Interchangeable blades for greatest flexibility in all areas of use. Blades made of Chrome-Molybdenum-Vanadium steel with black tip for precision fit. Set includes sizes Torx T6, Torx T7, Torx T8, TorxPlus T6, TorxPlus T7, TorxPlus T8, TorxPlus T9, Slotted 3.0 x 0.5, Slotted 3.5 x 0.6, Phillips #0, Pozidriv #0, Magnetic Bitholder, and Torque adjustable handle (5.3 - 13.3 inch pounds).