2. Different tapping practices

We need to distinguish between the problem of driving the tap and the problem of the tap's action at the end of the thread, while bearing in mind that there is interaction. The implementation of a tapping technique requires the use of a machine and a chuck. These have a major impact on the tapping operation and on process behavior. The various practices involved in operating the tap are discussed in this section 2 , and the means used are described in section