The Bosch GSB 21-2 RE Professional is a robust 1100-watt 2-speed hammer drill designed for heavy-duty applications. Featuring a high-performance motor and a robust metal gear housing, it ensures maximum durability and power. Its two-speed gearbox allows for optimal speed selection for various materials, delivering up to 51,000 impacts per minute. Ideal for precise drilling in concrete up to 22 mm, wood up to 40 mm, and steel up to 16 mm. Equipped with a 13 mm keyless chuck for quick bit changes and a rotating brush plate for constant power in forward and reverse.