Description:This manual screwdriver has interchangeable bits that fit and held into a socket on the end of the shaft. There are already 10 different bits in different drive and sizes, also you can buy many other kinds of bits to fit it. This is a very useful tool set, and you don't have to buy many screwdrivers but simply change the screwdriver bit for different screws.Features:1. This screwdriver is quite a practical tool set to have, with it in hand, you can simply change bits instead of using lot of screwdrivers2. The black and red part of handle is made from high quality PVC for comfortable and convenient grip3. Small size and easy to storage, if you got a toolbox, this interchangeable screwdriver set should be in it4. The end cap of the handle can be opened and the handle body is hollow that can be used to contain various types and sizes of bits5. This set comes with ten different interchangeable screwdriver bits in including S4, S5, S6, PH0, PH1, PH2, PH3, T15, T20, T25Specifications:Material: PVC, ironColor: As pictures showHex Socket Size: 1/4"Screwdriver Size: Approx. 10.5 x 2.9 x 1.18cm / 4.13 x 1.14 x 0.46"Bits: S4, S5, S6, PH0, PH1, PH2, PH3, T15, T20, T25Package Includes:1 x Screwdriver Handle10 x Screwdriver Bits