The Vevor diamond core drill bit set is designed for precise drilling in hard materials such as ceramic tile, granite, marble, stone, and glass. This 11-piece kit includes multiple bit sizes, a 5/8"-11 connector, and a storage case for convenient transport and organization. Built with high-quality diamond and 45# steel, the bits are made for smooth cuts and long-lasting performance. The set works with both dry and wet drilling applications using electric drills and angle grinders. It is a practical choice for both professionals and DIY users who need clean, accurate holes.