Uses: There are many styles and specifications of screwdrivers. They are divided according to the shape of the head. The commonly used ones are mono-shaped, cross-shaped and special shapes. According to the material of the handle, the commonly used are wooden handles, plastic handles, and plastic handles. kind. Common screwdriver usage methods: ①The use of short screwdriver: The short screwdriver is mostly used to tighten the small screws on the wiring post of the electrical device. When using it, you can clamp the handle with your thumb and middle finger, and twist the end of the handle with your index finger. ②The use of long screwdrivers: Long screwdrivers are mostly used to tighten larger screws. When in use, in addition to the thumb, index finger and middle finger gripping the grip, the palm of the hand should also be held against the end of the grip, so as to prevent slippage during rotation. ③Use of a longer screwdriver: You can press and turn the handle with your right hand, hold the middle of the screwdriver with your left hand, and do not place it around the screwdriver to prevent the blade from slipping off and scratching your hand.
