More info
Threading dies and screw-taps facilitate manual screw cutting, both external and internal.
Characteristics
.. made of HSS high-speed steel;
.. packed in a durable, metal cage.
The set consists of:
.. handle for screw-taps;
.. handle for threading dies;
.. 9 threading dies (M3, M4, M5, M6, M7, M8, M10, M12, and NPT27);
.. 9 screw-taps (M3, M4, M5, M6, M7, M8, M10, M12, and NPT27);
.. 20 elements in a set.