I don't want to encourage you to use pliers, but I have used them successfully in the past.

Some needle-nosed ones, and pinch the plastic hard about half way down the exposed peg. Because the plastic is then closed all the way, pushing through the board I find controllable. My Swiss Army knife has some pliers on that have a very close tip, and can be very good for fine but relatively forceful pliering. This is them, but the spring broke on mine 10+ years ago https://www.sakwiki.com/show_image.php?id=457 … ize=0&nocount=y

Otherwise, a small piece of pipe might work. A pipe the same or smaller diameter than the PCB hole. Push on the pin to close the tabs and it might recede on its own, or might need a poke with something down the pipe. A disposable ballpoint pen/Biro, with the ink and nib removed, might be just the right tool!

I probably used the wrong kind of pliers in the past, I used something like this and I ended scratching the pcb (lucky I didn't damage anything other than the solder mask) and destroying the tweezers.
With this specific video card I tried to use a biro but since the pins are in metal they destroyed the biro.
I could sacrifice this G550, but I also need to change the paste of my G400 MAX and I don't want to kill it (it also uses the metal push pins).
I think to avoid any scratch something plastic should be used, I sometimes used a small wire cutter but again it's not a solution it may end to cut the push pin if I put too much pressure.
Since english is not my first language, I'm sorry to ask, can you show me pictures of what I should use?
Thank you.

Back in the day I used to keep a couple de-inked Bic pens to pop off the plastic standoffs on AT motherboards. If the Bic Crystal didn't fit, the Round Stic would.

I usually just use straight/flat pliers. You can wrap them with some insulating tape or similar to reduce the chance of scratching the pcb

I recall using fingers. This same heatsink and card, metal pins.

A001 wrote on 2024-07-28, 10:32:

I recall using fingers. This same heatsink and card, metal pins.

wow I unable to take those metal pins of with pliers if you can do it with your bare hands congratulations 😁