The PSR Select Cordless Screwdriver: The right bit. Always at h&. This screwdriver features an integrated rotating bit cylinder that contains the 12 most important screwdriver bits. Thanks to Innovative Bosch Easy Select, an intuitive & easy-to-operate Select function, it is extremely convenient to change the different bits. An illuminated window enables individual bits to be selected quickly & easily. This unit has no memory effect & no self-discharge, it is always ready for use thanks to lithium-ion technology. Finally, this product is extremely durable, allowing up to 90 screws with one battery charge