Hammer SG0101R Product Information Short Round Shank Hammer Description Measurement Standards CE Length 131mm Air Pressure (PSI) 90 Speed (RPM) 5,000 (BPM) Decibel (dBA) 92 Air Inlet Thread (NPT) 1/4" Air Hose Size (ID) 3/8" CFM 4 LPM 115 Uses pressurised air to drive a hammer into a work-piece for shaping, scoring or smoothing.