This will extend the hole into the drywall or backer board with minimal damage. Now you can speed the drill up while backing off the pressure. You’ll feel a change in resistance when the bit gets through the tile.Steady pressure and a medium speed will drill the hole without overheating and damaging the drill bit.Once the hole is started, you can increase the drill speed, but don’t run it at full speed.Go slowly, particularly at first, to make sure the hole ends up where you want it.The tape not only makes it easier to mark the wall but also helps to keep the drill bit from skidding when starting the hole.
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