The Craftsman CMMT42031 Impact Bit Socket Set is a heavy-duty hand tool set designed for professionals and DIY enthusiasts. This 28 piece set includes sockets in 1/2 inch size range, perfect for working with metric measurements. Made of durable steel, these impact sockets are resistant to wear and tear, ensuring long-lasting performance. The black color adds a sleek look to the set, and the additional bits included provide versatility for various projects. Ideal for those needing a reliable and high-quality socket set for their workshop or tool collection.