This is a Bosch Professional GBR 4-50 rotary hammer drill. It’s a powerful electric tool used for drilling and chiseling in concrete, brick, or stone. This beast of a machine is built for tough jobs: drilling holes and chiseling in concrete, brick, or stone like it’s butter. With 850 W of raw power and 4,000 blows per minute, it smashes through hard materials fast, saving you time and effort on site. It’s packed in a sturdy plastic case for safe storage and transport.