This hole saw is a game-changer when it comes to cutting through granite and other tough materials. Based on our own experience using it in an industrial and scientific setting, we found it to be highly efficient and versatile. The diamond-coated tips make quick work of even the thickest granite slabs, and the variety of sizes mean you can tackle any hole cutting job with ease. The only drawback is that it's not the most budget-friendly option on the market, but the quality easily justifies the investment. Overall, a great choice for anyone in need of a reliable hole saw.