1. Rotating disc at the top, comfortable to feel, easy to unscrew the screw 2. Aluminum alloy handle, rust-proof and beautiful, lightweight, easy to carry around 3. hardness of the batch head, not easy to slip the wire 4. Material: 45# steel 5. System: metric system 6. Scope of application: glasses, cell phones, cameras, watches, etc. Packing list: - Handle - Phillips head: 1.0, 1.2, 1.5, 2.0, 3.0 - Hexagon head: T2, T3, T4, T5, T6, T7, T8, T9, T10, T15 - Straight head: 1.0, 1.5, 2.0, 3.0 - Pentagram head: 0.8, 1.2 - Solid round head: 0.8 - Triangular head: 2.3 - Y shape head: 2.0