On 11 May 2021 at 10:12:04 BST, "alan_m" wrote:

On 10/05/2021 21:30, newshound wrote:
On 10/05/2021 19:16, alan_m wrote:
On 10/05/2021 18:30, RJH wrote:


There really isn't enough to grip with mole grips etc.; penetrating
oil - good
plan (although the ones that did come out were more stiff than tight);

Irish screwdriver?Â* Try inserting the hex bit and tapping with a
hammer which may shock any tight bond loose before attempting to undo.

Yes, I'll give that a go. The panel is a not that firm so getting a decent
'thump' may be tricky.


Amn impact driver may also work - it hammers the bit in at the same
time as turning.


Remarkably effective technique, but 4mm is a bit small IMHO.


Not so small for tor this type of impact driver
https://makitauk.com/products/impact-drivers-1

rather than

https://youtu.be/RWYXnMM__6M?t=16
which can be a lot more brutal.

I've got a 14V ID - the few that came out came out using that.
--
Cheers, Rob