This Diamond Core Drill Bit M14 8mm x10 is a great addition to any tiling project. It is part of a power tools core drill bit kit, and is diamond brazed for maximum durability and cutting power. This high-quality hole saw set is perfect for drilling through tile, stone, masonry, and other hard materials. With a 4-6 week production-to-delivery time, this Diamond Core Drill Bit Set is sure to be a great addition to any tiling project.