Single hexagonal screwdriver 405 8.0 Wiha 03853.

Material:
Ductile-hard chromium-vanadium-molybdenum steel, fully hardened, chemically blackened.

Application:
For protecting threads and removing damaged or broken screws with left- or right-hand threads, especially twisted hex socket screws. Simply insert the screwdriver, firmly attach the socket wrench and unscrew without jamming.