... μmClick Frequency300 ± 10HzAdjust Range≥ 0.01mmNeedle HardnessHRA92Gas Source0.3-0 .8 Mpa (industrial gas source or compressor air source)Temperature-20 ... , frame, chassis, connecting rod, engine, cylinder, and various mechanical parts, machine tools, hardware, metal pipes, gear, pump, valves, fasteners, and various ...