This wrench is a lifesaver when it comes to changing tires in the automotive industry. Through trial and error, I found that the Barcoded L Wrench ProGuard is incredibly efficient in loosening and tightening lug nuts .Its durable construction and protective ProGuard finish ensure that it can withstand the harsh conditions in the industry. The only con I have is that it can be a bit pricey, but the quality makes up for the cost..