Durable dry drilling in masonry! High-quality diamond grit and matrix for durability and performance. Drilling into the hardest building materials can be challenging, but with the PRO Core Cutter dry, you will definitely get the job done. It is durable and sharp enough to penetrate all materials. The quality and durability of the PRO Core Cutter dry is evident in its high-quality diamond coating in a premium metal matrix for high performance and longevity.