General description This professional-grade Knipex 250mm Cobra Water Pump Pliers (Model 88146) is designed for durability and strength, made from high-quality chrome vanadium steel that is oil-hardened and tempered. It features smoothly ground jaws and an accurately formed box joint with a safety stop for reliable performance. The parallelogram-shaped gripping surfaces have specially hardened teeth to 61HRC, ensuring a secure grip on pipes and nuts. The tool includes a one-handed press button for quick adjustments and heavy-duty molded handles with slip guards for added safety. Additionally, it has a 'no-nip' feature that prevents the handles from locking together, reducing the risk of injury. Technical specifications Material: Chrome vanadium electric steel Hardness: Hardened teeth to 61HRC Adjustment: One-handed press button Handle: Heavy-duty molded handles with slip guards Standards: DIN ISO 8976 Compatibility and accessories Designed for gripping pipes, nuts, and fittings