Set of bits and auger drills with conical chamfer, made of HSS steel ensuring long lifetime. Makes thread and removes burrs in a single operation, saving time and drilling machine. Can be used for steel, copper, brass, aluminium and plastic. Set includes 6 taps and drills M3 × 0.5, M4 × 0.7, M5 × 0.8, M6 × 1, M8 × 1.25, M10 × 1.5, 1 extension adaptor, 6 CRV bits SLOT4, SLOT5, PH1, PH2, PZ1, PZ2. Comes in a plastic case.