This flex head ratcheting wrench combination is a superstar in the world of industrial and scientific hand tools. Thanks to my knowledge gained in practice I can confidently say that its flexible design adds an element of ease and precision to my work. The ratcheting MECHANISM provides for easy tightening and loosening, and the slim profile of the wrench makes it easy to use even in tight spaces. The only downside is that it can be a bit heavy, but the benefits of its superior performance make it well worth the investment..