HMB530 Hydraulic Breaker / Hammer  Attachment - New! Unused Hydraulic Breaker Attachment, comes with New Chisel, Hydraulic Hoses, Nitrogen Charging Kit w/ Bottle. Fits 2 - 5 Ton  Mini Excavator. Buy New for the cost of used! Specifications Operating Weight:   418 lbs. Required Oil Flow:   6.6 - 11.8 GPM Working Pressure:   1,305 - 1,740 PSI Impact Rate:   500 - 1100    BPM Chisel Diameter:   53 mm / 2.09 in Hose Diameter:   1/2 in Class Weight:     2.5 - 3 Ton