Specification:

Chisel Shank(in): 0.4
Bore Diameter(I.D.): 3/4" (19mm)
Stroke Length:2-5/8"(66mm)
Blow per Min. (RPM): 3,300
Sound Level dB(A): 99
Air Pressure (PSI): 90
Air Inlet (NPT): 1/4"
Avg. Air Cons. (CFM): 5.5