The TEKTON Reversible Ratcheting Combination WRN51170 is nothing short of amazing. My analysis of this product showed that it is built to last with its sturdy design .The ratchet is smooth and easy to use with the reversible feature making it all the more convenient. It fits most nuts and bolts with ease. The only con I could find is that it may be a bit bulky for some users. Overall, a great addition to any Industrial and Scientific toolkit..