Excuse me, what does the nut use to knock on the teeth?

In general, the nut tapping machine is used to tap the teeth.

Nut tapping machine is a kind of mechanical processing equipment for processing internal threads, screws or tooth buckles of nuts, flanges and other parts with various specifications of through holes or blind holes. Nut tapping machine is also called nut tapping machine, nut tapping machine, automatic nut tapping machine, automatic nut tapping machine, tapping machine and tapping machine. According to the different driving power, nut tapping machine can be divided into pneumatic tapping machine, electric tapping machine and hydraulic tapping machine. According to the spindle number of nut tapping machine, it can be divided into single-axis nut tapping machine, double-axis nut tapping machine, four-axis nut tapping machine and six-axis nut tapping machine.