DT-DIATOOL Diamond Core Drill Bit 7/10" - Welded Hole Saw 18mm with 5/8-11 Arbor for Granite Marble Concrete Hard Stone -

The 5/8 welded drill bits are specifically designed for drilling holes in various materials, including stone countertops, plumbing lines in showers and vanities, and granite marble all nature stone concrete.

The product is ideal for both dry and wet use, ensuring maximum efficiency and durability.

With a recommended RPM of 6000 and a maximum RPM of 11000, the bits are designed to provide smooth and precise drilling results.

Additionally, the product comes with a detailed guide on how to install and maintain it for optimal performance.

Overall, this product is an excellent choice for anyone looking for high-quality drill bits that can handle various drilling tasks with ease.