On 07/01/2021 13:22, misterroy wrote:
Can plug tap sometimes mean second and sometimes bottoming?

Here is RS's plug taps selection, some of them look like they get close to the bottom, others less so.
https://uk.rs-online.com/web/c/hand-...ons=4294885797

The names seem to vary from website to website.

Is there a definitive answer?

ta


Yes use Tracy Tools who specialise in taps.