High quality taps that can be used by hand, but they may also be used in a machine if required. Extremely versatile, can tap through or blind holes in most materials. When tapping blind
holes straight flute taps should be used in sets. The three taps which form a set are known by more than one name.
1. Taper or First tap
2. Second or Intermediate tap
3. Bottoming, third or plug tap.