Scubapro MK11 diaphragm retainer torque C-spanner tool made from premium 6061 aluminium.

The Scubapro MK11 diaphragm retainer torque C-spanner tool is a professional-grade workshop instrument engineered for the high-precision servicing of Scubapro first-stage regulators. When overhauling a balanced diaphragm regulator, tightening the main retainer to the exact specifications outlined by the manufacturer is crucial to prevent intermediate pressure creep or structural failure.

This specialized C-spanner allows technicians to securely interface with the regulator's perimeter holes to achieve a solid, non-slip fit. Precision-machined from premium 6061 aluminium and reinforced with a hardened stainless steel pin, it delivers the ideal balance of lightweight handling and exceptional durability. This tool is a fundamental addition to any high-volume dive center or professional technician's workbench.

How It Works:

This tool is specifically designed to safely torque down the internal retaining components. Engage the hardened stainless steel pin of the C-spanner firmly into one of the perimeter holes on the diaphragm retainer ring. Slide a standard 109P torque wrench (or an equivalent 3/8" square drive torque wrench) into the integrated adapter on the tool. Apply smooth, controlled pressure to tighten the retainer to the strict manufacturer-specified torque rating of 35 Nm, ensuring a perfect seal without risking distortion or stripping.

Key Features & Specifications:

Torque Wrench Compatible: Outfitted with a standardized connection designed for seamless integration with a 109P torque wrench or a digital torque meter.
Premium Metallurgy: CNC-machined from high-grade 6082-T6 aluminium to prevent marring on the regulator body, backed by a hardened stainless steel pin for long-term durability.
Precise Calibration Handling: Specifically configured to achieve the critical factory torque requirement of 35 Nm securely.
Dual-Model Support: Purpose-built for the maintenance of Scubapro MK11 first stages, and fully compatible with the Scubapro MK16 T.I.S. first-stage regulator.
Manufacturer Cross-Reference: Works reliably alongside the official Scubapro part number: 43.707.109P

Technical Details: