Infinity Core Bits offer fast smooth drilling in a variety of materials. Huge assortment of sizes to drill any size you need.  Excellent on Granite, Marble, Engineered Stone, and other natural materials.
 
1/4" - 6" Diameters Available
Fast Drilling Speed
Long Life
Wet Dry Drilling
Extra Coarse Diamond
Brazed Side Diamonds Inside and Out for faster smoother drilling