The ultimate workshop solution for removing severely corroded or seized first-stage diaphragm clamps.
Overcome the toughest regulator rebuild challenges with the industrial-grade Apeks Flight heavy-duty composite diaphragm retainer tool. Specifically engineered for scuba service professionals, this high-torque key is designed for the safe removal and installation of the first-stage composite diaphragm retainer ring exclusively on Apeks Flight first-stage regulators.
When regulators suffer from severe salt corrosion or lack of routine servicing, generic or light-duty tools fail and slip, risking permanent structural damage to the expensive composite clamp assembly. This heavy-duty version delivers the absolute mechanical leverage required to break stubborn thread locks without deformation.
How It Works:
- Positive Locking Engagement: Press the precision-profiled circular recesses of the tool directly onto the corresponding nodes of the composite diaphragm ring.
- Torque Drive: Connect your standard 1/2" Ratchet or breaker bar into the top socket drive.
- Smooth Operation: Safely rotate the assembly to smoothly crack open or tightly close the diaphragm retainer ring with zero risk of slipping.
Key Features & Specifications:
- Built for Seized Gear: Masterfully engineered to handle extreme conditions when more torque is required due to severe corrosion inside the first stage.
- Ultra-Durable Aluminum Construction: Unlike standard Delrin or plastic composite keys, this heavy-duty version is completely precision-machined from high-grade aluminum to handle immense rotational stress without twisting or cracking.
- Flawless Mechanical Interface: Designed with a tight, non-slip profile that uniformly distributes massive torque loads across the composite ring to protect both your workshop tools and your customer's regulator hardware.
Technical Details:
- Manufacturer: Scuba Service Tools
- SKU: 1200-SST-037
- Drive Interface: 1/2" Square Ratchet / Torque Wrench Connection
- Material: Precision-machined Aluminum
Apeks Flight heavy duty composite diaphragm retainer tool
Apeks AP5719 Diaphragm clamp composite Flight

















