A set of precision ratchet precision nut drivers supplied in storage case, ideal for electronics and precision work. 7x nut drivers: 3, 3.5, 4, 4.5, 5, 5.5, 6mm. Finger tip ratchet with forward lock & reverse. Nut drivers colour coded for easy identification. Manufactured from aluminium with a Chrome Molybdenum drive & S2 steel nut drivers.