Anti-Vibration Technology (AVT) for best-in-class low vibration Compact AVT is our unique mechanism developed especially for small rotary hammers Compact with less weight Continuous rating Input : 470W No load speed : 0 - 2,100 Vibration Level : Hammer Drilling Into Concrete: 7.5 m/s? Sound Pressure Level : 87 dB(A) Sound Power Level : 98 dB(A) Power supply cord : 2.5m (8.2ft) Capacity : Concrete: 18 mm;Core Bit: 35 mm /;Diamond Core Bit (Dry Type): 65 mm;Steel: 13 mm / Wood: 24 mm Impact Energy : 1.4 Joules Blows per minute : 0 - 4,800