Make your own kit. Ask your eye Doc for spares when you buy your glasses. More than likely they wont charge you for them. Then buy a quality jewler's driver.
ETA: On a recent trip, my titanium frame broke at the bridge. JB Weld held them together untill my new pair arrived, and the color even matched pretty well.
Bought a set of decent drivers years ago. I just hate seeing a kit that costs $2 or more that is worth $0.01.