What type of screw is this, How to remove this screw?

Question

When trying to remove this screw I used a torx key set however it did not work.  Mechanic thenused his own extension on a ratchet and it did work.
From the comment in this answer How to ensure I am buying an torx key for automotive repair?.  it seems the mechanic may have used a different extension then the torx set I was using.
Is this the case and if so what type of extension might I need.  Note that the leyland torx set definitely did not work in fact you can see I damaged the wired screw by using the leyland one.

RaphaelP · Accepted Answer

According to Honda Civic 1996-2000 Service Manual on archive.org they are Torx T30 bolts.

The two things I can think of is that either:

you didn't use the right sized bit (least likely)
your tool didn't have a good clearance in that space so you ended up trying to fit it angled in the bolt head; torx don't like that (more likely)

Try undoing the easiest screw first, fit the tool straight and push it all the way into the screw.

What type of screw is this, How to remove this screw?

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