How to Drill Through Metal & Concrete

Written by cameron easey
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How to Drill Through Metal & Concrete
Different-sized drill bits (tools drill bit image by Alexander Ivanov from

Drilling holes into a surface is typically needed to secure a screw or a bolt when attaching a bracket or some other object to a wall. A hole may also be needed to connect one object to another. Two types of surfaces that you may need to drill into from time to time are metal and concrete. You can drill through metal and concrete with a power drill by using the correct type of drill bit for each surface.

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Things you need

  • Power drill
  • Hammer drill
  • Cobalt drill bit
  • Oil
  • Concrete drill bit

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  1. 1

    Insert a cobalt drill bit into the end of your power drill. If you cannot find a cobalt bit, look for any drill bits designed to make holes through steel.

  2. 2

    Apply a small amount of oil to the area of the metal where you plan to drill. The oil will keep the drill bit lubricated and also decrease its temperature.

  3. 3

    Place the drill so that it is at a 90-degree angle with the metal.

  4. 4

    Set the speed on your drill to the lowest setting, if you have a variable-speed drill.

  5. 5

    Press the trigger to begin slowly drilling through the metal.

  1. 1

    Insert a masonry drill bit into the end of your hammer drill.

  2. 2

    Place the drill at a 90-degree angle to the surface of the concrete.

  3. 3

    Press the trigger on the drill to begin drilling through the concrete. The hammer action of the drill will force the drill bit into the concrete.

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