KK-Dry Core Bit - 9" Drilling Depth

All KK-DRY bits are designed for masonry, cured concrete 3" or less with no reinforcement, brick, and block. Pointed V segments for easy start. For use on grinders or Hammer Drills without percussion. These laser welded diamond core drill bit is designed for drilling hard granite, marble, engineering stone, concrete, brick This core drill bit is ideal for dry cutting and provides perfect drilling action. The diamond bit is ideal for drilling the faucet mounting holes in stone countertops, plumbing lines in showers and vanities. It can fix on angle grinder tightly and rightly.