What are the models and specifications of ring wrenches?

There are more than five specifications and models of ring wrenches, but the commonly used ones are: 6, 8, 10, 12, 14, 17, 19, 2 1 ... but now 5,7. At present, there are too many kinds of screws of various specifications, and some even apply for patents. Therefore, obstacles are set up to prevent you from disassembling and repairing it yourself, and you have to use special tools.

The inner holes at both ends of the ring wrench are regular hexagons. According to its closed size, it can be divided into 8- 10mm, 12- 14mm, 17- 19mm, etc.

When in use, the ring wrench with corresponding closing size should be selected according to the size of the bolt or nut. Compared with the open-ended wrench, the ring wrench can be transposed and nested again after being pulled for 30 degrees, which is suitable for narrow occasions, with high strength and is not easy to slip when used.

Socket wrench: Socket wrench is a convenient, flexible and safe tool for removing bolts, and it is not easy to damage the edges and corners of nuts during use. Its sleeve is short tubular, and one end is dodecagon or hexagon, which can cover the bolt head; The other end has a square head hole, which can be matched with the square tenon of the matching handle. Common socket wrenches are 6.3mm series, 10mm series and 12.5mm series.

In addition to the common standard sleeves, there are many special sleeves, such as hexagonal long sleeves, hexagonal or dodecagonal flower sleeves, pneumatic sleeves, screwdriver sleeves and so on.