Crimp pins not compatible with plug / socket combo

Hi Michael,

Sorry that I was not clear.

What I mean is:

  1. When I test if I can insert the contact pin (A25405-ND) directly into the header (A1494-ND) to see if it is the correct diameter, it inserts fine and is removable also.

  2. However, when I install the crimp pin into its plug housing (A97525-ND), the latter does not insert into the header easily. It is also very difficult to remove. I cannot understand why.

  3. As regards the Extraction Tool (A32539-ND), I understand that it can only be used “for rectangular contacts”, whereas the contacts I have seen from TE Connectivity (e.g. A25405-ND) are circular in cross-section.

Am I misunderstanding this?

Does the Extraction Tool allow me to remove contacts of circular cross-section or only rectangular cross-section?