Threading machine: The requirement is that the needle is fast and the needle is fast, so as not to hang the skin! The requirements of the fog machine are different, it depends on the habits of each tattoo artist! This is not possible with all mass-produced machines! Generally speaking, we people are accommodating machines (speed; strength; flexibility). Speed and flexibility are related to the decisiveness of the user's needle placement, and strength is related to the user's habits.
