The DIN retainer tool is a lifesaver during the scuba regulator service, it is used for unscrewing the broken (rounded hex key) DIN connector of the first stage when a hex socket has no effect anymore because the opening has become completely round.
 
Support the tool in your bench vice and turn the first stage with the broken DIN connector by holding it with our heavy-duty first stage holder this way the connector will come loose.
 
The DIN retainer tool is precision machined from aluminum.
 
GTIN: 8720828266564