What is a screwdriver

1、 Introduction to Screwdrivers
A screwdriver is a simple and commonly used hand tool used to remove and tighten screws. A screwdriver mainly consists of a handle and a blade. The handle is usually made of plastic or wood, and the blade is usually made of high-strength steel material.
Different types of screwdrivers need to be selected based on the shape and size of the screws. Commonly seen are cross head screwdrivers, flat head screwdrivers, hexagonal screwdrivers, etc. The head shape and size of different screwdrivers vary to meet the requirements of different screws.
2、 Use of screwdriver
The method of using a screwdriver is to first select the appropriate head shape and size for the screw, then insert the screwdriver into the raised part of the screw, and rotate the screwdriver clockwise or counterclockwise to tighten or loosen the screw. It should be noted that specialized hand tools should be chosen as much as possible, and tools made by repair manufacturers that do not match the size and are barely usable should not be used.