The PSR 18 LI-2 Ergonomic is a cordless drill driver with an ideal ergonomic design. DIYers benefit from the especially compact lightweight design. The tool ensures optimum power transfer & relieves strain on the user making it especially pleasant to work with. Its brushless motor & intelligent electronic control system give the PSR 18 LI-2 Ergonomic especially high endurance. Complex projects are also no problem with the PSR 18 LI-2 Ergonomic because its battery offers more runtime per battery charge thanks to the Bosch Syneon Chip