คุณลักษณะ

• Use a separate tap holder.
• The magnet type tongue folding tool can be easily folded at the notch by touching the tip of the tool (with magnet) to the tongue and lightly tapping the head of the tool with a hammer. Also, since the folded tongue attaches to the magnet and can be taken out immediately, you can confirm that the tongue is definitely broken.
• The middle tap is the most commonly used tap, and is primarily used for street holes. There are four mountain leads.
• Use a drill with a pre-hole size of +0.3 mm thread size.