... and supply various full series of screwdriver bits, nut setters, nut drivers, sockets, socket adapters, bit holders Screwdriver ... PVC bag, color boxNut driver (nut setter)Material: Cr-V steel, types: non-magnetic and magneticSurface treatment: Zn-coating, sandblasted ... , Ni-coating, Cr-coatingFitting nut size: 4mm, 5mm, ...