![]() ![]() Parallel ridges indicate the rebar is providing vertical reinforcement. If the ridges are perpendicular to the floor, you have found a horizontal support. If you can see rebar, determine whether it is oriented horizontally or vertically. If you can’t see any rebar, it’s possible you encountered an air pocket or large rock. Clean the hole using a vacuum or a can of compressed air and shine a light inside.When you release the trigger the drill will stop spinning. ![]() Should this happen, simply drop the drill and step back. When the tip of the bit encounters rebar, it is possible that you will lose control of the drill. Place the tip of the bit against the mark you made in step three and slowly apply pressure to work the drill bit through the concrete.The pilot hole should be at least three to four times smaller than your desired end result. You can start with a masonry bit and switch to a tungsten carbide or diamond core bit should you hit rebar. Measure and mark the site for drilling and choose a bit for your pilot hole.Handheld drills, hammer drills, and rotary drills all have the capacity to drill through rebar when paired with appropriate technique and materials. Consult the size and spacing information below to determine where you are likely to encounter rebar while drilling. ![]() Bit breakage is common when drilling through rebar protect your face and eyes from dangerous metal projectiles. Goggles or a full-face shield are even better. At minimum, don a tightly-fitting respirator and eye glasses with side shields.
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