The HT 3/8 Drive Deep Socket 21mm Metric 6-Point by Horizon Tool is designed for high-performance applications. This deep socket is crafted from durable chrome vanadium steel, ensuring longevity and resistance to wear. With a 21mm size, it is ideal for automotive and mechanical tasks requiring deep access to fasteners. The 6-point design provides a secure grip on nuts and bolts, reducing the risk of rounding. This socket is compatible with standard 3/8-inch drive ratchets and extensions, making it a versatile addition to any toolset. Its polished chrome finish not only enhances durability but also makes for easy cleaning and maintenance.