The Duratool CL5046 is a 45-piece professional grade socket set ideal for a variety of heavy-duty applications. It comes with a wide selection of tools, including a range of metric and imperial-sized sockets, a ratcheting handle, ultra-durable extensions, and a silicone socket holder. The set includes pieces made from chrome vanadium steel for strength and durability, and comes complete with a deluxe carrying case for convenient portability and storage. The CL5046 provides all the essential tools you need to tackle any wiring, plumbing, mechanics, or other professional jobs.