F wrench adjustable Suitable Application: Designed to work with valve fittings, hexagonal screws, profiled pipes, round pipes, and other fasteners. Suitable for and professional use, providing convenient performance in various scenarios. General Purpose: Broad maintenance tool with a 74 mm jaw width and thin heads for easy access to fasteners. Ideal for valve fittings, plumbing repairs, and automotive repairs. Improved Efficiency: Features a smooth precision slide that opens and closes without snagging, enabling efficient and precise operation. Maximum opening is 100 mm, with strong teeth for secure grip. Built to Last: Made of carbon steel with good hardness and toughness, rated at HRC > 60. Fine workmanship ensures precision and durability for a wide range of needs. Use scenarios Tightspace valve fitting work where space is limited and a firm grip is required. Plumbing repairs in cramped areas such as under sinks or behind fixtures. Automotive repairs where access is restricted and quick, reliable gripping of fasteners is needed.