Lutz 15-in-1 Ratchet Screwdriver. With ergonomic handles and high-strength, heat treated bits, the Lutz Mult-Bit Screwdriver Collection is a perfect addition to any toolbox. The Lutz 15-in-One Ratchet Screwdriver is a handy, all-purpose driver that is perfect 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. Available in 15-in-One, 6-in-One, 4-in-One and 2-in-One Combinations. 1/8" Slotted x #0 Phillips Replacement Bit. 1/4" Slotted x 3/16" Slotted Replacement Bit. 1/4" Slotted x #2 Phillips Replacement Bit. 5/32" Slotted x #3 Phillips Replacement Bit. #1 x #2 Phillips Replacement Bit. T15 x T20 Torx Replacement Bit. S1 x S2 Square Replacement Bit.