Hand Tap
A hand tap is a tool for precisely cutting internal threads without machine assistance. It is operated manually using a holding tool – usually a tap wrench or ratchet handle.
For easier cutting and a clean thread, work is classically carried out in several steps. Hand taps are therefore often offered in sets:
- Three-piece sets (taper, plug and bottoming tap) for coarse threads, characterised by different chamfer lengths to remove material step by step.
- Two-piece sets (taper and bottoming tap) for fine threads.
For easy identification, the individual taps are often marked with rings on the shank.
In addition to these sets, there are also single-cut taps designed to produce the internal thread in a single pass. This saves time and simplifies handling, especially for smaller sizes or when speed is required.
The use of cutting oil or paste is essential to ease the cutting process, extend tool life and improve thread quality.
Hand taps are particularly suitable for DIY, repairs and use in hard-to-reach locations where machines are not available.