Pavement Breaker Weight Class 90 lb Shank Size 1 1/8 in x 6 in Maximum Blows per Minute 1 250 bpm Piston Bore Size 2 5/8 in Piston Stroke Length 5 3/4 in Retainer Type Latch Vibration Reducing Handles Yes Sound Reducing Muffler No Air Inlet Gender Male Air Inlet Size 3/4 in Air Inlet Type NPT Air Consumption 85 cfm For Use On Asphalt Concrete Stone Paving Handle Type Flex Handle Hex Shank Size 1 1/8 in x 6 in Minimum Hose Size 3/4 in