1. Versatile Set: The 7PCS tile drilling tool drill bit set includes sizes of 1 or 4, 3 or 8, 1 or 2, 6mm, 8mm, 10mm, and 12mm, making it perfect for various projects involving stone and marble. 2. Efficient Dry Drilling: Our stone dry drilling drill bit is designed to provide efficient performance without the need for water, ensuring a clean and precise hole in your tiles or stone surfaces. 3. Marble Drilling: These bits are specifically crafted for marble drilling, ensuring that you achieve smooth and accurate results while minimizing the risk of chipping or cracking. 4. Construction: Made from high-quality materials, the 7PCS tile drilling tool drill bit set is built to withstand rigorous use, providing and reliability for both DIY enthusiasts and professionals alike. 5. Easy Compatibility: Each drill bit in the set is compatible with standard power tools, making it easy to switch between sizes as needed for all your drilling tasks involving stone and marble. Colour:As Shown Material:carbon steel Package Contents: 7 x tile drilling tool drill bit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.