This Rolson 51pc Screwdriver & Precision Bit Set (28288) offers a comprehensive selection of tools for various tasks. It includes a driver handle with a 4mm drive and swivel top, along with a wide range of bits: Nut Spinners (M2.5, M3.0, M3.5, M4.0, M4.5, M5.0), Slotted bits (1mm, 1.5, 2, 2.5, 3, 3.5, 4mm), Crosspoint bits (PH000, PH00, PH0, PH1, PH2), Pozi bits (PZ00, PZ0, PZ1), Star bits (T4, T5, T6, T7, T8, T9, T10, T15, T20), and Hexagon bits (0.9, 1.3, 1.5, 2, 2.5, 3). The set also features a 115mm magnetic extension bar and a convenient holder case. All bits are manufactured from durable Chrome vanadium.