Bi-material microscrewdriver with 36 interchangeable 4-mm bits and magnetic extension.Bits:Torx bits: T3 | T4 | T5 | T6 | T7 | T8 | T9 | T10 | T15Tamper resistant Torx bits: T6 | T7 | T8 | T9 | T10Flat/Slotted bits: 0.8 | 1.2 | 1.5 | 1.8 | 2 | 2.5 | 3 | 3.5 | 4 mmHex bits: 0.7 | 0.9 | 1.3 | 1.5 | 2 mm