17 PCS / Set Multi-Function Electric Drill Screwdriver Bit(C )

1. Material: S2 alloy steel
2. Size: Bit extension rod shank diameter and interface, 6.3 mm (1/4) on opposite sides of hexagon, bit length 2.5 cm, extension rod length 6 cm, bit length 7.5 cm
3. Weight: about 11g/set
4. Scope of application: precision instruments, clocks, computers
5. Features: overall heating and high frequency quenching treatment, high hardness, not easy to wear, complete specifications, wide applicability
6. Contains: A (phillips x4, straight x5, inner hexagon x7, post x1), B (phillips x4, torx with hole x12, post x1), C (phillips x4, straight x5, U-shaped x4, square x3, post x1), D (phillips x3, pozidriv x3, U type x4, Y type x2, triangle x4, post x1)