In article , alan_m
writes
On 05/08/2020 22:00, Dave Liquorice wrote:
On Wed, 5 Aug 2020 21:47:43 +0100, bert wrote:

Just checking one out. I've taken the top off. What sort of travel
should I expect on the pin? I push it down and it comes back up.
Somewhere around 3/16" +/- 1/16".


And it should come up. It's the mechanism in the bit that has been
taken off that pushes down the pin.

It does. Does that mean it is normally open?
--
bert