This ratcheting combo is a game-changer for mechanics. According to my experience, it has a flexible head that allows easy access to the tightest of spaces. The ratcheting mechanism ensures a smooth tightening and loosening action... The tools are made of high-quality steel making them durable for long-term use. However, the only con I found was that it's slightly HEAVIER than other ratcheting combos. Overall, it`s a great addition to any industrial and scientific toolbox..