A seven-piece set of hollow-shaft nut drivers designed for tightening and loosening hex nuts and bolts. Includes sizes 5, 5.5, 6, 7, 8, 10 and 13 mm, each with a shaft length of 90 mm. The hollow shafts allow work even with nuts on protruding threaded rods. The multi-component ergonomic handles feature size markings and a hexagonal anti-roll feature that prevents rolling on the work surface.