Introduction

Screwdriver is a tool for opening all kinds of screws, which can be opened by hand and by rotating the handle. Usually, screwdrivers have two types, one-sided and four-sided, which in works such as repairing electronic and mechanical devices, there are special screwdrivers to open special screws such as star, square, which are used to open any A screwdriver or a screwdriver set is used for the screw, and in the second type, a screwdriver with different series is used.