The HT 1/2 DR Deep Thinwall Impact Socket 21mm by Horizon Tool is designed for heavy-duty applications, providing exceptional durability and performance. This socket is crafted from high-quality chrome molybdenum steel, ensuring resistance to wear and tear. With a 6-point design, it offers a secure grip on fasteners, reducing the risk of rounding. The deep well design allows for easy access to recessed fasteners, making it ideal for automotive and industrial use. Measuring 21mm, this socket is compatible with standard 1/2-inch drive ratchets and impact wrenches, meeting ANSI standards for quality and safety.