Paving Breaker Product Type Paving Breaker Shank Size 1 1/8 in x 6 in Shank Shape Hex Maximum Blows per Minute 2 160 bpm Piston Stroke Length 6 in Pressure Port 1/2 in NPTF Female Return Port 1/2 in NPTF Female Minimum Operating Pressure 105 psi Maximum Operating Pressure 1 800 psi Minimum Flow Rate 5 gpm Maximum Flow Rate 8 gpm Sound Level 110 dB Handle Type Cushioned/Spring-Dampened Hydraulic System Type Open Center Includes 1/2 in BSP to 1/2 in NPTF Adaptors Whip Hoses