This tool is used for removing and installing the caps of some old style  first stage regulators.The blade sizes are 2.2 and 1.5 mm at each end. The 19 mm hex stock makes torqueing or the use of a socket possible if a 19 mm long socket is placed over the tool.

This tool fits Aqualung Conshelf first stage.

Made from stainless steel 304. 

Regulator not included.