I have used the Craftsman's Combination Wrenches for some time now. On top of the metric combination, they also have a standard combination that is sold separably. The set itself contains all the typical metric sizes you would need for most projects. The material they are made of are of high quality which is what you would expect from Craftsman. Also these tools come with the lifetime warranty which is also pretty standard for Craftsman (lifetime meaning if it breaks they replace if for free). What sets these wrench apart is the ratcheting system found on the opposite end of the wrench. This allows the user to tighten down parts with out having to constantly readjust the wrench. This is so handy when working in tight areas that are hard to see (i.e. car engines). The only draw back I can find is that the ratcheting end can be a little bulky at times and may be hard to get into a tight space. This has only happened once for me, so I do not consider it a big deal. Overall this is a fantastic set for the professional or homeowner.