Metallic slotted inline second-stage regulator adjustment tool.

The Slotted Inline Second Stage Adjustment Tool is an indispensable, high-quality instrument designed specifically for professional scuba technicians and dive workshops. Manufactured and rigorously bench-tested by Scuba Service Tools, this specialized workshop tool connects directly inline between the second-stage regulator and the low-pressure (LP) hose. It allows for effortless, real-time tuning of the demand valve while the breathing system remains fully pressurized. By doing away with the repetitive process of shutting off the gas supply and bleeding lines, it drastically cuts down on service time and optimizes workflow efficiency. Featuring a precision flat-blade drive tip, it delivers reliable performance across an extensive array of modern regulator brands that utilize a standard slotted adjustable orifice.

How It Works:

The tool is installed directly inline, bridging the gap between the low-pressure regulator hose and the second-stage air inlet. Once the scuba system is pressurized, the technician inserts the internal flat blade into the slotted drive of the adjustable orifice. By rotating the external adjustment handle, the technician can turn the orifice smoothly to dial in the exact seating tension against the internal valve lever. This allows for fine calibration under live, realistic gas pressure, making it simple to find the perfect airflow balance instantly.

Key Features & Specifications:

Live System Calibration: Enables full adjustment of the second-stage orifice breathing resistance while the LP hose is under working pressure.
Precision Flat Blade Tip: Features a robust 0.275-inch (0.7-mm) flat screwdriver profile designed to lock securely into standard regulator slots without slipping.
Vast Industry Compatibility: Masterfully engineered to fit slotted orifices from dominant brands such as Scubapro, Apeks, Aqualung, Atomic, Cressi, Hollis, Oceanic, Sherwood, and many more.
Workshop Approved: Heavily utilized and trusted by internal service teams for its exceptional structural quality and universal fit on modern regulator designs.

Technical Details: