The WORX 20V AI Smart drill is perfect for novice or experienced DIYers alike. It uses technology to help you be better at DIY, with a self-tightening & bit centring chuck to make bit change simple, and automatic speed adjustment for different drilling needs. It will help you tackle a range of DIY jobs around your home. It has a pulse function for easy start up when drilling on tough materials such as tiles and steel, the tool also uses micro adjustment technology when screwdriving to detect the resistance and slow or stop the drill for you. The self-tightening chuck is easy to use, just put the drill bit into the open chuck and twist the collar, it will automatically centralise the bit and tighten the chuck 30% tighter than by hand. Free 2 year guarantee, 3 years if extended online at Worx. Com. 1 year Pro guarantee. 20V battery power. Variable speed. Speed 0-800rpm. Reverse function. Fully charged in up to 1 hours. Charger included. 10mm keyless chuck. 1 gear. Maximum torque 20Nm. Drilling capacity for wood 25mm and steel 10mm. Temperature overload function which shuts down unit automatically if it overheats. LED power indicator. 2Ah. Li-Ion battery. 1 battery. Soft grip handle. Accessories included: 1 x 2.0ah battery, 1 x charger, 1 x double ended bits, 1 x carry case. Double ended screw bit included. Carry case. Drill weight 1.3kg. 3 year when registering online manufacturers guarantee.