Ideal for demolition/concrete jobsite, crushing; chipping; digging and squaring. Grease packed gear box; Specifications: Voltage: 110 V/60 HZ; Input Power: 1100W; Hammer frequency: 3900BPM(RPM); Impact Energy: 15J; Max. Drill Capacity Dia.: 1-1/2''/38MM; Bit Type: 17mm (5/8 in.) Hex Shank Bits; Package Included: 1 x 1-1/2'' Demolition Jack Hammer; 1 x Side Auxiliary Handle; 1 x Point Chisel 17x250mm (Hex Shank); 1 x Flat Chisel 17x250mm (Hex Shank); 1 x Key Wrench; 1 x Pair of Spare Carbon Brushes; 1 x Heavy Duty Plastic Storage Case; 1 x User's Manual.