The brazed dry diamond core hole saw kit is made of carbide material, which makes it strong and . It adopts a high anti-corrosion brazing process and the top is thickened with a diamond coating to provide excellent cutting resistance, achieve smooth and high-precision cutting and drill stably and . Widely used, our brazed dry diamond core drill bits can not only be used for daily tile drilling, but we also offer several smaller size drill bits designed to meet the daily DIY needs of home gardening, perfect for drilling holes in ceramic vases, providing a better environment for plant survival. Your perfect choice - tile hole saw kit can meet most drilling needs in your work or daily life. Suitable for most brittle and hard materials such as ceramic tiles, ceramics, glass (except tempered glass), marble, , terrazzo, etc. Ergonomic - All brazed hole saws are treated with a special high-temperature resistant process. Even without as a lubricant, can still withstand the intense heat