An impact socket set in 1/2" square drive, Bi-Hex (12pt) profile. This ten piece box set covers a range of commonly used larger sizes, from 32mm to 36mm, in 2 different depths, and ideal for use on hub nuts. Manufactured from chrome molybdenum, designed to withstand the stresses of impact tool use. They also feature a practical black phosphate finish, offering improved corrosion resistance, together with a drilled collar to accept retaining pin or detent ball.