A pedicle screw driver is provided and includes an inner shaft and outer shell. The shell includes a sidewall defining an inner cavity and has a slot formed on the sidewall. The slot includes a narrowed slot portion. The inner shaft includes a narrowed shaft portion. The narrowed shaft portion is sized to fit through the narrowed slot portion, but not other wider portion of the slot. The shell includes apertures that can permit gas and fluids to access the inner cavity of the outer shell.
