Adjust a range of parts on radio transmitters and other electronics without disrupting signals or causing short circuits. Made from ceramic, these screwdrivers are completely nonconductive, nonmagnetic, and noninductive. They’re rigid enough to make fine adjustments, and their edges won't round over time. However, they’re also brittle, so they shouldn't be used for final tightening or prying. Each comes with two reversible shafts. Flip the shaft around for a different size or swap it out to change the drive style.