I have some air vents that are under a ledge such that I have barely
2" to squeeze into to get at the screws and they are such that a normal screwdriver will not engage.
I've tried just the Philips bits from a screwdriver set and I have a very small ring spanner that fits but it is quite a slow procedure.
The Philips bits are either just too big or just too small to fit in my ratchet ring. What would be a good way to "jam" the bit into the ratchet ring spanner?