The GBH 2-21 Professional 720 W SDS plus rotary hammer is ideal for use in concrete, masonry and stone. This machine benefits from a powerful motor with an impact force of 2 J allowing it to drill into concrete up to 21 mm in diameter. It also has three modes (drilling, drilling and chiselling) guaranteeing great versatility while delivering convincing results. In addition, the GBH 2-21 Professional is compatible with the GDE 16 plus, GDE 68, and GDE 162 extraction devices which can be connected to an external vacuum cleaner. Technical data: Nominal power consumption: 720 W Impact force: 2 J Impact frequency at nominal rotation speed: 0 - 4800 bpm Tool dimensions (width): 88 mm Tool dimensions (length): 334 mm Tool dimensions (height): 205 mm Tool holder: SDS plus Weight: 2.3 kg Drilling range: Drilling diameter in concrete hammer drills: 4 - 21 mm Drilling range in concrete hammer drills: 4 - 10 mm Maximum drilling diameter in metal: 13 mm Maximum drilling diameter in wood: 30 mm Maximum drilling diameter in concrete: 21 mm Information on noise and vibrations: Total vibration values (drilling and impacting concrete): 14.7 m/s² Uncertainty K: 1.5 m/s² Total vibration values (chiseling): 11.9 m/s² Uncertainty K: 1.5 m/s².