The KNIPEX Hexagon Socket Screw Key (TN201-021) is engineered with a 21mm size, ideal for heavy-duty fastening tasks. Made from high-grade materials, this tool provides exceptional strength and durability, ensuring it can handle demanding applications. Its ergonomic design allows for comfortable use, making it suitable for both professionals and DIY enthusiasts. This socket key is compatible with various hex screws, offering versatility in its use. KNIPEX is synonymous with quality, and this product adheres to strict industry standards for performance and safety.