Keys are treshchotochny. GOST 22402-77

Keys are treshchotochny. GOST 22402 - 77

Material: the alloyed constructional steel.
Protective and decorative covering of the tool: zinc; nickel - chrome.
Types of processing of a surface: 1st execution; 2nd execution.
Description: Keys treshchotochny are intended for maintenance of cars. Advantage of a treshchotochny key with the switch consists that they can both turn off a nut, and to twist by means of the reversive device, without removing it from a replaceable head.