If vertical machine can not fit in with the working conditions, it can be replaced by horizontal special purpose machine.
- Free to exchange tiny pitch.
- Quick and easy to exchange.
- Gear drives with merely one side teeth without slots.
- Slow revolving, wear resisting
- Because one running is for each tapping thread, it can taps perfect thread's rings to let the tap enlarge the using life time, the accuracy gets the standard of the gauge, the working piece cannot pull jumping while the tapping is backing action, it can simplify the fixture, the working pieces don't pressure or holding, they only avoid anti-rotation to tapping job.
