Bosch PSB 1800 LI-2 Hammer Drill (2 Batt 1.5 Ah)The PSB 1800 LI-2 (2 Batt) is a cordless, 2-speed hammer drill/driver. This tool delivers high levels of power thanks to its 18 V lithium-ion battery. Intelligently managing the interaction between the battery, motor and gearbox the Bosch Syneon Chip provides optimum power and maximum endurance throughout your project.\nThe PSB 1800 LI-2 features a two speed gearbox with a vast-range of pre-selectable torque settings and comes with a second battery, so you can continue drilling without the annoying interruptions and charge the battery in 1 hour.\nBosch Syneon ChipBosch\u2019s innovative Syneon Chip technology forms part of a unique electronic control system that efficiently manages the coordination of battery, motor and gears within your tool, delivering optimum power and maximum endurance for the task at hand. This intelligent Syneon Chip delivers the perfect amount of energy required for your project and can be found in all Bosch cordA