The 12-in-1 multi-bit driver comes with 4 double-ended popular tips and converts to 4 nut driver sizes that are quickly and easily interchangeable thanks to the ball-detent mechanism. Black chrome-plating on the steel barrel prevents rust and ensures longevity. Tri-panel ergonomic rubber handle improves grip control and comfort in the hand. The multi-bit driver gives you faster access to multiple tips and nut drivers.