Screwdriver type classification
Screwdrivers can be divided into words, crosses, meters, star (computer), square head, hexagonal head, Y-type head, etc., where the word and cross is the most commonly used in our life Installation, maintenance of this type should be used, it can be said that as long as there is a screw to use a screwdriver. Hexagon head with the small, commonly used hex wrench, like a lot of screws on the machine with a hexagonal hole, easy to multi-angle force.