Gordon Airporte wrote:Count the flats on the key.
that's what i always used to do
but then, a few days ago..
i was taking apart one my newly-bought cylinder,
i was shocked and angry to find out its only got 4 pins!
and the key had 5 notches
there was even an extra chamber for a fifth pin...
and yet, it's a 4 pin tumbler
does this happen alot?
since then i always physically count the pins with a pick...