The new Ryobi TEK4 tool range provides performance, durability & long run-time in a compact package. Each TEK4 tool is powered by a 4 volt re-usable & interchangeable Lithium-Ion battery. The Ryobi CSD42L is a compact & unique 4 volt cordless screwdriver & is equipped with a secure quick change chuck & automatic spindle lock, this is ideal for single handed bit change. The CSD42L has an adjustable 24-torque setting dial for use on delicate work pieces so you get the right amount of torque on screws etc. all the time every time, while the 2-speed gearbox gives you added control, power & fast track completion on any work project. Also fitted to the CSD42L is a bright LED light, ideal for working in dimly lit areas like under stairs, in lofts or even when building kitchen cupboards. Another great feature on this cordless screwdriver is the Grip Zone overmould technology this gives the user enhanced comfort with a positive grip. Each TEKk 4 tool is powered by a 4 volt reusable Lithium-Ion battery & is designed for ultimate performance & ease of use. The TEK4 battery is interchangeable with all Tek 4 products giving you ultimate flexibility.