Lutz 21001 2 Pack 15-in-1 Ratchet Screwdriver, Blue 15-in-One Ratchet Screwdriver is a handy, all-purpose driver that is perfect for any do-it-yourself Plus, the ratchet function allows the user to apply turning force for driving or removing screws With just a slight turn of the spring-loaded bit selector knob, the chamber opens for easy access With ergonomic handles and high-strength, heat treated bits the Lutz Mult-Bit Screwdriver Collection is a perfect addition to any toolbox