I'm not sure on the model. I am almost sure you don't use a screwdriver to adjust the action though. Loosen the strings and turn the knurled screws at the bottom and they should raise or lower on that side.
Does anyone know what bridge this is fitted to my guitar? A
it's a faber tone lock.
looks like a 3031, installed backwards.
Haha yeah, I remember when I got this guitar looked at the guy said something along those lines...