I abandoned the ARB deflator and switched to the Staun Automatic Tire Deflators:
Staun Automatic Tire Deflators (Standard Duty 6-30 PSI)
The amount of damage those rock rings have taken is heavy, and never once has it caused any valve damage. I'd be worried to open up the rings more and risk valve damage.
Or, use it as an excuse to upgrade I've had my eye on this product for a while
INDEFLATE FOUR HOSE UNIT
Staun Automatic Tire Deflators (Standard Duty 6-30 PSI)
The amount of damage those rock rings have taken is heavy, and never once has it caused any valve damage. I'd be worried to open up the rings more and risk valve damage.
Or, use it as an excuse to upgrade I've had my eye on this product for a while
INDEFLATE FOUR HOSE UNIT