The BLACK & DECKER DWMT75193B is a 21mm socket designed for durability and performance. Made from high-quality chrome vanadium steel, this socket offers excellent strength and resistance to wear. Its 1/2-inch drive size ensures compatibility with a wide range of tools and applications. The polished chrome finish provides corrosion resistance, making it ideal for both professional and DIY use. This socket meets ANSI standards for quality and reliability, ensuring it can withstand high torque applications. Perfect for automotive repairs and general maintenance tasks.