Hex Key Allen Bit Quick Change Connect Impact Driver Power Drill H1.5/H2.5/H3~H6
Drive Model: H1.5/H2.5/H3.0/H4/H5/H6. Hardness: HRC60°. Features: Strong magnetism, High hardness, high torque. If you encounter any problems with your order, we are here to help. Issue Resolution：.