Good to know- With this 3-in-1 Bosch tool you can easily switch between drilling, hammer drilling and screwdriving- The compact, cordless design means it's easy to carry, with no cable to get in your way- You can effortlessly drill holes in wood, concrete and steel- Drilling in dark spots won't be a problem with the integrated LED light- The keyless chuck lets you change accessories without any hassle_______________________________Please note: This hammer drill requires the Bosch 18V Power for All battery (sold separately).