Hand tool for removing material during renovation and rehabilitation, for quickly and efficiently roughing stone surfaces such as steps, underpinnings and others, for removing adhesive, paint, coatings, synthetic resin-based plastering, aerated concrete and calcareous sandstone. Motor 1,600 W, 230 V/50 Hz. Idle speed regulation range: 500 – 3,000 rpm with stabilisation during load. Flange for extraction, head diameter: 125 mm, roughening thickness: 1 – 5.5 mm. Support table with smooth depth settings, optimal handling thanks to additional grip, clean air on the workplace thanks to efficient dust extraction.