Drilax Diamond Drill Bit Hole Saw Extra Tall Long Drilling Quartz Granite Countertop Ceramic Porcelain Tile Glass 34, 1, 1 14, 1 38, 1 12 Inch 5 Pieces Set

The Drilax Diamond Drill Bit Hole Saw has received positive reviews for its ability to drill through various materials including quartz, porcelain tile, and granite. Customers have reported using the drill bit with standard cordless drills and achieving good results. One user confirmed that the bit worked well on 1" thick porcelain tile without issues. Another user mentioned that the drill bit could cut through granite without chipping, as long as a small amount of water is used to prevent overheating. The product was also recommended for use on granite countertops, with a suggestion to use the drill on a certain speed setting while spraying water into it simultaneously.