1) Product: Multi-purpose drill bit 5pcst Sizes: 4mm,5mm,6mm,8mm,10mmUniversal drill to drill holes on hardened steel, ceramic tile, concrete, laminates
2)Picture of multi-purpose drill bit 5pcst
It can be used to drill hard steel, cast iron, ceramic tile, glass, plexiglass, concrete, marble, porcelain,laminates, wood