General description The 19-22mm Scaffolding Wrench is a versatile tool designed for various applications. Made from high-quality chrome vanadium steel, it features a precision-forged design that ensures strong toughness, durability, and high torque. The two-way conversion design allows for efficient operation in tight spaces, requiring only a 5-degree rotation for effective use. Technical specifications Material: Chrome vanadium steel Size range: 16-18 mm, 18-21 mm, 17-19 mm, 19-22 mm, 19-21 mm, 19-24 mm, 21-22 mm Heat treatment: Overall heat treatment for high hardness Head hardness: Quenched to ensure safe torsion