Allows to work in tight spaces or with screws requiring a precision bit. Great for precision and electronic work. Has pen-clip for convenient carrying. The screwdriver shaft is extensible an additional 2-3/8” and locks in both the closed or extended position in any incremental length. Six Double-Ended Bits: Philips PH000 and Slotted 1.5mm / Philips PH00 and Slotted 2.0mm / Philips PH0 and Slotted 2.5mm / Star T7 and Star T15 / Star T6 and Star T10 / Star T4 and Star T8