A screwdriver with a worn, cleaved or broken cutter hea […]
A screwdriver with a worn, cleaved or broken cutter head cannot be used. It is necessary to flatten the blade and frustrate it as much as possible to match the shape of the original cutter head. When you are boring the cutter head, follow the original taper line. The screwdriver is damaged during use and must be repaired or replaced immediately.
Choosing the right size screwdriver also requires us to "take the wrong one, don't be afraid to bother, change the correct one." Sometimes, some well team workers like to do it. Use a small screwdriver to screw the screws. Usually, the cutter head is bent, and the small screwdriver is used to screw the small screws. When the screw is not inserted, some people flatten or flatten the screwdriver head. Both the screwdriver head is damaged, the effect is not satisfactory, and sometimes the wall of the screw slot is cracked. We should know that a screwdriver of a certain size can only withstand a certain amount of torque. The larger the shank, the greater the corresponding torque, and the handle of a certain size can only withstand a certain amount of torque. The screwdriver takes this into account in the design process, so we can't change the width and shape of the cutter.