8in1 Dual Purpose Separable Nut Driver Set

1.Two way hexagonal fixed, two-way use, can meet more needs.
2.Hi-qualityCR-V alloy steel screwdriver head, high temperature quenching, high hardness and high torque. The surface is electroplated for wear resistance and durability.
3.The overall treatment of the cutter bar has high hardness, good toughness, wear resistance, firmness and durability
4.Precision head, machined, consistent with the shape of the screw hole, not easy to damage the screw