The Craftsman Overdrive CMMT99064 64-Piece Standard and Metric Mechanics Tool Set is a comprehensive collection of socket set tools designed for professional mechanics and DIY enthusiasts. With a combination of standard length sockets in both standard and metric sizes, this set provides a wide range of options for various applications. The Craftsman brand is known for its durability and quality, making this tool set a reliable choice for any mechanic or handyperson looking to expand their toolkit.