The Bosch Professional GSB 183-LI GAL 18V-20 is a cordless drill driver designed for professional applications requiring reliable performance and versatility. This 18-volt power tool delivers a maximum torque of 56 Newton meters, making it suitable for drilling in wood, metal, and masonry with its hammer drilling function. The tool operates at two speed ranges: 374 to 484 rotations per minute in first gear and 1,402 to 1,815 rotations per minute in second gear, providing optimal control for various materials and applications. Weighing 1.2 kilograms without battery and 1.5 kilograms with battery installed, the drill driver offers balanced handling and reduced user fatigue during extended use. It features 20 adjustable torque settings for precise screwdriving applications, preventing damage to materials and screw heads. The electronic motor protection system safeguards against overheating and overload conditions, extending both motor and battery lifespan. This model is compatible with all Bosch Professional 18-volt batteries and chargers, allowing integration into existing tool systems. The included GAL 18V-20 Professional charger and two GBA 18V 2.0 ampere-hour batteries provide immediate operation capability. The brushless motor technology ensures efficient power delivery and longer runtime between charges. The ergonomic design incorporates a comfortable grip surface and balanced weight distribution for improved control during overhead or extended use. The keyless chuck enables quick bit changes without additional tools, while the built-in LED worklight illuminates dark work areas for accurate drilling and driving. The battery fuel gauge indicates remaining charge level, allowing users to plan work sessions effectively. This drill driver meets professional standards for durability and performance in construction, woodworking, and maintenance applications.