Siphon and connector pliers with fine adjustment for ideal adaptation to diverse diameters. Suitable for siphons, oil filters, plastic pipes, and connectors up to 80 mm in diameter. Robust and heavy-duty, these pliers are perfect for tightening and loosening siphon screw connections, plastic pipe fittings, and round union nuts. They work well with connectors and couplings that have screw connections, such as Cannon circular connectors. Designed for gentle loosening of hoses on nozzles and filter cartridges, they provide optimum adhesion on dirt, oil, and fat-free surfaces. Features ergonomic handle geometry and various clamping widths for hexagon, round, and square shapes.