... and supply various full series of screwdriver bits, nut setters, nut drivers, sockets, socket adapters, bit holders Screwdriver bitMaterial types: Cr-V 6150 ... , injection case, blow case, 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, 5.5mm, 6mm, 7mm, 8mm, ...