Rock Breaker 4.5-6T Favourite This Equipment Description Suits all makes and models of mini excavator from 4.5 to 6 tonnes. Operating Weight: 295Kg Chisel Diameter: 68mm Oil Flow: 40-70 Lpm Operating Pressure: 130-150 Bar Impact Energy: 690 Joules Impact Rate: 500-900 Bpm Details Oil Flow Range: 40-70 Lpm Manufacture Year: 2023 Brand: Earthquake