Superior Diamond Tools Dry Diamond Drill Bits - 4pcs - 1/4'' (6mm), 5/16'' (8mm), 3/8'' (10mm), 1/2'' (12mm) - Quick Change Hex Shank - Tile Drill Bits - Ceramic Drill Bit - Porcelain Drill Bits

The 4-Piece Dry Diamond Drill Bits are specifically designed for drilling through porcelain, ceramic, granite, marble, masonry, concrete, and various types of tile and stone.

With vacuum brazed diamond technology, these drill bits provide fast, chip-free holes while maintaining a long life.

The quick change hex shank provides better chuck grip and fits different styles of drills, ensuring easy use and convenience.

Additionally, the integrated wax self-cooling system allows for dry drilling, making it easier to work with these materials without water.

With a 4.2 out of 5-star rating from customers, this product is a must-have for any DIY enthusiast or professional looking to make quick and efficient holes in various materials.