【Suitable for】Drilling and tapping in plastic, wood and soft metal like aluminum, iron, etc. These taps are made from high-speed steel for high hardness and rust resistance.
【Self-centering design】Do not need additional center drilling or center punching.It could decrease processing steps greatly, save time and improve working efficiency.
【Metric】M3x0.5, M4x0.7, M5x0.8, M6x1, M8x1.25, M10x1.5.Shank:1/4 inch (6.35mm) hex shank. You can use for tapping various threads.
【Suggestion】Recommended for use on tapping machine, pay attention when using hand drills. Taps are designed with spiral flutes and the chip clearing process would be better.
【Material】HSS (4341) High hardness, rustproof, solid and durable.