As a professional tile installer for over a decade, I have always struggled to find a reliable, durable and efficient drill bit for ceramic, porcelain and stone tiles. However, the Raizi Vacuum Brazed Diamond Tile Hole Saw Drill Bits Kit changed the game for me. With a 3/8" shank and a kit of 5 diamond-tipped drill bits, this product is a game-changer for anyone looking to drill holes in tough materials. I have used it on porcelain tiles, stone and even concrete, and the results have been nothinSee full review