VEVOR Demolition Jack Hammer, 1400W Electric Jackhammer Heavy Duty, 2pcs Chisels Bits Chipping with Case, 2900 BPM Concrete Breaker, Gloves Black Powerful Motor This electric chisel hammer is lightweight and has a robust 1400W motor. It delivers powerful impact energy to complete demolition, chiseling, excavation, grooving, and cutting projects. Automatic Locking Design Ground Breaking Wall Demolition Drill Removing Single Impact Energy: 19J,Rated Impact Frequency: 2900BPM,Noise: ≤103dB,Input Power: 1400W,Voltage: 110V,Model:JH-0840,Chuck Type: 5/8" Hex Shank,Net Weight: 17.8 lbs/ 8.1 kg,Package Size: 20 x 5.1 x 14 inch/ 510 x 130 x 355 mm