SaS CiViC

Yea i know all of u will probly make an *** out of me but i have a question n e way...I got glow gauges for my 96 ex Civic and when i was installing them i didnt realize i was using a magnetic screwdriver now the only gauge that actually works is my gas gauge, the rest of the needles aren't aligned right and i tried to fix them a couple times, for example my speedometer says im going 40 when im really goin 30 and the tac stays at 2 grand and doesnt move and it pisses me off . Can i fix them without buying a whole new cluster or what?