For extremely precise work: The ASCD 18-200 W4 AS features electronic torque adjustment with 6 settings, preventing screw head stripping. Brushless motor with 30% higher efficiency and long lifespan. 1/4'' internal hex tool holder for accommodating bits and socket inserts. 10% higher torque in reverse for loosening extremely tight screws. Robust full-metal impact gearbox. Touch protection on the gearbox head. Compact design. 850 screw connections (M18) on a single battery charge (GBA 18 V 5 Ah). Ergonomic and flexible handling with side-mounted bit and belt holders. Compatible with Bosch Professional 18 V batteries since 2008 and AMPShare batteries. Maximum work progress with AMPShare 18 V ProCORE batteries: COOLPACK 2.0 technology provides 135% longer battery life. State-of-the-art cell technology and intelligent battery management deliver 87% more power than conventional batteries. "Electronic Cell Protection" (ECP) protects the battery from overload, overheating, and deep discharge. Fully equipped for every application. Mobile working with the L-BOXX system.