Tapping

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Definition - What does Tapping mean?

Tapping is the process of cutting threads on the inside surface of a drilled hole. This is achieved by using a special tool called a tap. Tapping a hole is necessary to develop the full strength of a connecting screw or bolt. In addition to creating threads in new holes, this process can also be used to create threads on the inner surface of nuts.

Trenchlesspedia explains Tapping

Contrary to popular belief, threads are not created from drilling. Drilling is simply used to bore a smooth hole in a specified material. Threads are usually made after the required hole has been bored to receive a screw or bolt. Tapping can be done using one of the following methods:

  1. Hand tapping
  2. Milling machine
  3. Tapping machine
  4. Lathe Machine

Taps come in a variety of specifications and each is suitable for different project requirements. For instance, a spiral screw tap with a shallow angle is appropriate for harder materials to mitigate the risk of thread chipping when the tap is reversed or removed from the borehole.

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