penny for comparison, i need to open up my laptop
#What size of Torx screw will I need?
silver holly
you could try a small slot screwdriver like those "toy" ones that come with eyeglass repair kits. it may fit
grizzled fog
I would start checking from the biggest one to smallest one you have, whatever fits, not familiar with measuring relative to US Penny.
Maybe T15, it is around ~3mm, so that screw slot has to be about twice as thick as that coin, not sure and very much kind of speculating, 