CP Air Hammer, 3/4 in Bore, 3000 bpm Blows per Minute, 2.63 in Stroke Length, 6.25 to 25 cfm Air Flow, 90 psi Air, 1/4 in Air Inlet, 3/8 in Minimum Hose, Pistol Grip Handle, 100 dB Pressure/111 dB Power Sound Level, 6.7 in L Dimensions. CP 8941071111 Air Hammer, 3/4 in dia Bore, 3000 BPM, 2.63 in L Stroke, 90 psi, Tool Only