I gave 5 stars because this set is value for money. But it's important to understand what he can't do if you want to be happy. If your goal is to thread soft materials like brass or 6061 aluminum etc. then this set is a good choice and will serve you well. If you want to cut mild steel, you can do it if you are really patient and diligent about the process (turn, retract, turn, retract, turn away, oil cut, etc.). If you are interested in high carbon steels, hetero-alloy steels or exotic steels…