Description The most common wrench is a construction that combines an open-end and a ring profile. The combination of these two single-size profiles compensates for their individual shortcomings. It is made in accordance with the DIN 3110 standard from chrome-vanadium steel, hardened, has a chrome-nickel coating, and fully complies with the GOST 2838-80. Upon request, it is possible to supply combination wrenches of the "W26" series with sizes up to 105 mm.