3 Review(s)

The screwdriver is not easy to rust, saving manpower. Screwdrivers do not have round heads, because round heads have no torque at all. One word is to ensure that there is torque, and the cross can make the force distribution more even. According to the power source, there are manual screwdrivers and electric screwdrivers; according to the bit or bit, there are flat head and Philips.