Siphon and connection pliers feature fine adjustments for ideal adaptation to various diameters up to 75 mm. They are perfect for connections, oil filters, plastic pipes, and siphons, making them excellent for tightening and loosening siphon screw connections, plastic pipe connections, and round nuts. These pliers are suitable for connections and couplings with screw connections, such as Cannon round connectors, and allow for gentle disconnection of hoses at nozzles and filter cartridges. They provide optimal grip on dirt, oil, and grease-free surfaces. The 25-fold adjustable hinge and interchangeable gripping jaws include a two-component plastic insert with a hard carrier system (red) and a soft gripping component (blue).