With newly designed two-component material screwdriver handle for easy grip and square drive for direct drive of socket wrench bits. Including adapter from square to hexagonal drive for use with screwdriver bits. A square drive in the front of the handle is all that is required: the enclosed extension with sliding collar can also be used as a lever for work requiring greater force. Set also contains screwdriver bits (25 mm) in industrial quality of special steel alloyed with chrome-molybdenum-silicone-manganese-vanadium: Phillips bits sizes 1 + 2. Slotted screw bits 4.0 + 5.5 mm. Hex keys 1.5 - 2.0 - 2.5 - 3.0 and 4.0 mm. TORX bit sizes 5 - 6 - 8 - 10 - 20 and 25. CrV steel socket wrench bits sizes 4 - 5 - 5.5 - 6 - 7 - 8 and 10 mm. Supplied in a practical, compact steel box.