Siphon and Connector Pliers Fine adjustment for ideal adjustment to diverse diameters For siphons, oil filters, plastic pipes and connectors up to 80 mm diameter Robust, heavy duty. Ideal for tightening and loosening siphon screw connections, plastic pipe fittings and round union nuts For connectors and couplings with screw connection, such as Cannon circular connectors For gentle loosening of hoses on nozzles and filter cartridges Optimum adhesion on dirt-, oil- and fatfree surfaces Ergonomic handle geometry. Capacity half-moon Capacity in square millimetres Square drive Capacity square Capacity step-like square Capacity triangular Clamping width hexagon Clamping width round Clamping width square Clamping width