Most often, such extension adapters with a hinge are used for working with a ratchet wrench at a certain angle, as well as in hard-to-reach places. According to the seller, they are made of chrome vanadium steel (CrV), which ensures their high strength, resistance to stress and mechanical stress, as well as corrosion resistance. The manufacturing quality of the adapters is at a decent level: there are no backlashes and all kinds of “artifacts” of low tide. On the case of the adapters is marked with the name of the steel from which they are made and the size of the landing square. The maximum angle that the adapter can deviate is slightly less than 90 degrees due to the design features. An important feature of these adapters is that all joints are spring-loaded, due to which they retain the set angle. On the keys adapters sit tight. The ball on the shank is spring loaded.
The seller has 3 types of adapters:
• landing square size: 1/4 "(6.35 mm) / adapter length: 41 mm;
• landing square size: 3/8 "(9.5 mm) / adapter length: 60 mm;
• landing square size: 1/2 "(12.7 mm) / adapter length: 75 mm.
In general, very good adapters that adequately perform their functions. The price of ali is not so different from the offers on the Russian market, but in any case it is lower. In addition, taking into account the current beginner discount, these adapters can be purchased almost for nothing.
Cost: ~ 115