3.5 inch Diamond Hole Saw Drill Core Bit Heavy Duty Wet and Dry Use 3-12 inch Diamond Drill Bit for Brick, Concrete Block, Masonry 2 inches Depth of Cut - 38 inch Standard Shank

The general Consensus among customers regarding the performance of this product is positive, with users praising its ability to cut through various materials such as brick, cinderblock, stone walls, and concrete with ease. One user mentioned successfully drilling a 90mm hole through a brick wall for an AC installation in only five minutes without causing any damage to the tool. Another user modified the drill to accommodate a larger material thickness and found the tool to still have plenty of life left after extensive use. However, there are some concerns about the fragility of the shaft, with one user mentioning that it was too small and prone to bending when drilling. Despite this, users appreciate the clean and smooth holes that the tool is capable of making, indicating its effectiveness in various drilling applications. Overall, customers are happy with the performance of this core drill, especially its ability to cut through tough materials. With some modifications and careful use, many users believe that the tool has a lot of life left and provides good value for its functionality. **