1. When in use, the right hand holds the screwdriver, the palm of the hand against the handle end, the screwdriver and the screw keep in coaxial, twist with the wrist after compression, press the screw lightly with the palm of the hand after loosening, and rotate the handle quickly with the thumb index finger and the middle finger.
2.Avoid using crowbar, otherwise it will cause bending or breaking. Regular screwdrivers are prohibited when crowbar is used, otherwise the head will be retracted into the handle or broken notch.
Color assortment: 37 pieces