Fine adjustment for optimal adaptation to a wide range of diameters, for siphons, oil filters, plastic pipes and connectors up to Ø 80 mm, robust, highly resilient, ideal for tightening and loosening siphon screw connections, plastic pipe connections and round union nuts, for plugs and couplings with screw caps (e.g. Cannon round connector), for gently loosening hoses on pipe sockets and filter cartridges, 25-way adjustable, box joint, ergonomic leg geometry, with toothed gripping jaws, up to Ø 80 mm, chrome vanadium electric steel, forged, oil hardened