The Wera 25mm Drywall Tough Phillips PH2 Bits supplied in a Bit-Box, with a slide switch that allows simple and gradual removal and reinsertion of the bits. The transparent reverse side provides an easy contents check. The bits been specifically designed with drywall screws in mind, they have a reduced shaft diameter that allows for precision setting of the screws into the panels. Suitable for long universal use. The Bit-Box slide switch allows simple and gradual removal and reinsertion of the bits. The transparent reverse side provides an easy contents check.