Tool for fine-tuning 2nd stage regulator. Just connect the tool inline between the 2nd stage regulator and the LP hose, allowing adjustment while the hose is pressurized. The hexagon-end of the tool is inserted into the 2nd stage to allow the orifice to be turned to the proper adjustment for the 2nd stage air inlet.
Scubapro DIN retaining knob O-ring installation bullet tool
DIN retaining knobs have big and sharp threats and putting an O-ring over these threats most of the time damages the O-ring.By using this small bullet the job is done quick while O-ring is still in perfect condition.