Diamond Core Drill Bit. DiamondSure bonded diamond core drill bits cut through materials where other bits fail. They are designed to drill in the hardest surfaces or the most delicate and fragile. DiamondSure bits can be used in any standard variable speed drill.
Sizes in stock include:
1/8", 3/16", 1-1/8", 1-1/4", 1-3/8"
4-Pack contains the sizes 1/4", 5/16", 3/8" and 1/2" Diamond Core Drill Bits
