1.material:carbon steel/Cr-V/S2 2.finishing:stain,nickle plated,titanium coated 3.hexagon size:2mm,3mm,4mm,5mm,6mm 1.material:carbon steel/Cr-V/S2 2.finishing:stain,nickle plated,titanium coated 3.hexagon size:2mm,3mm,4mm,5mm,6mm 5 pieces hexagon screwdriver bits