Ratchet spanner is a kind of manual screw tightening tool, single head, double head multi-specification adjustable handle ratchet spanner (fixed hole). It is connected by different specifications and sizes of the main plum sleeve and from the plum sleeve through the hinged key of the male key and male key bite. Because a quincunx sleeve has two specifications of quincunx through holes, so that it can be used for two specifications of screw tightening, thus expanding the scope of use, saving raw materials and labor costs. Adjustable lever can easily adjust the Angle of wrench. This kind of wrench is used to tighten screws, and has the characteristics of strong applicability, easy to use and low cost.
