The KNIPEX HZ900Z-21 is a durable 12-point socket made from high-quality chrome vanadium steel, ensuring exceptional strength and longevity. With a size of 21mm, it is suitable for a wide range of applications, particularly in automotive repair and maintenance. The socket features a polished chrome finish that resists corrosion and wear, maintaining its performance over time. It adheres to ISO standards, providing peace of mind for professional users. Designed for compatibility with standard ratchets, this socket is an essential tool for any technician.