The Craftsman 1/4 Drive 4mm Hex Bit Socket is a high-quality tool designed for automotive and industrial applications. This lot of 2 sockets features a chrome surface finish, making it durable and resistant to corrosion. With a length of 4.33 inches, these standard sockets are perfect for fastening and loosening nuts and bolts. The 1/4 inch drive size ensures a secure fit on the bit socket, making it a reliable choice for various mechanics and DIY enthusiasts.