The utility and technical characteristics of open-ended spanner the screw is the main fastener in the machinery equipment, the open-ended spanner is the machinery industry processing, the production, the maintenance important tool, this project is a traditional spanner tool revolution, it has the following several advantages. 1. Can Work Fast, three to four times faster than the speed of the traditional slinker, faster than the speed of the slinker. 2. An open hand can be fitted with 2 or 6 types of screws, while a two head hand can be fitted with only 2 types of screws. An open slicker is equivalent to 2-3 stiff  hands and is equivalent to a movable slicker but works quickly without adjusting the opening. The service life is long, it can't be broken, and the Front Quick Board hand is easy to break. 4. The manufacturing process is simple and the cost is lower than that of a stiff hand. 5. Light Weight, easy to carry, easy to work.