With ergonomic handles and high-strength, heat treated bits, the Lutz multi-bit screwdriver collection is a ideal addition to any tool box. The Lutz 15-in-1 ratchet screwdriver is a handy, all-purpose driver that is ideal for any do-it-yourselfer, professional contractor or first time home owner. With just a slight turn of the spring-loaded bit selector knob, the chamber opens for easy access and storage, making bit changes a snap. Plus, the ratchet function allows the user to easily apply turning force for driving or removing screws with less effort.