With this Klein Tools 32291 15-in-1 multi-bit screwdriver you will carry fewer tools. This Klein Tools 32291 screwdriver / nut driver comes with a fixed shaft and internal storage compartment for the screwdriver bits so they stay with the driver. 14 different sizes with an emphasis on tamper-proof bits plus a 1/4-Inch nut driver should cover the range of all your bit needs.