The britool e160802 ratcheting revolver bit driver is supplied with a cartridge style bit holder the screwdriver offers traditional and revolver style ratchets allowing application of extra torque if required through a 2 position handle bits supplied 2 x 25mm phillips bits ph1 ph2 2 x 25mm pozi bits pz1 pz2 2 x 25mm slotted bits 4 5mm 5 6mm