Hi. Just put in a bluestar 36" range top - Love it so far. However, I noticed that some of the burners are not adjusted so the lowest setting is not low enough, especially the simmer burner that is pretty much the same on high or low settings.

I watched the video that explains how to adjust the flame height. I bought a 1/8" screwdriver from home depot but couldn't make it work (the neck was too thick to rotate feely within the brass knob support.

My question is, do you have a recommendation of what kind of screwdriver I should use for this purpose? I don't want to have to wait weeks for the service repair person to come out to do the adjustment.

Thoughts?