The DM.JL tool from Facom is a specialized wrench designed for servicing fuel pump retaining rings in vehicle fuel tanks. It allows for safe and controlled tightening and loosening of the circular retaining cap.

Made from high-strength tool steel, it offers the necessary hardness and torsion resistance to handle tight and hidden fittings. The jaw design ensures even and complete grip around the circumference of the cap, minimizing the risk of deformation or shear.

Its use is essential for proper maintenance or replacement of the fuel pump, without requiring destructive intervention of the tank. It is recommended to inspect the tool for any damage or cracks before each use. Use only with the appropriate size ratchet and applying steady, controlled force, avoiding sudden movements. After use, clean the tool and store it in a dry place to prevent corrosion.