Shaft extends from 40mm to 100mm by simply loosening black retaining screw then tightening at desired length Supplied with 6pc x 30mm double ended bits. Slot 2.5 x PH0, Slot 2.0mm x PH00, Slot 1.5mm x PH000, Star T4 x T8, T7 x T15 Complete with pocket clip Bit storage in handle