Frequency of Voltage: 220/230/240 Power rating: 1100W, 120V, 60Hz, 9A Negative beat times overall: 1950–4860 minutes Total length: 5.8 kg (12 lbs)/456 mm (17-9/10") joules of impact: 1-7J 1-5 ft. lbs Ability: Core Bit: 90 mm (3-1/2")/Drill Bit: 35 mm (1-2/5"). The SDS Max System There are two modes: rotary drilling and hammer only with idle power.