I am in the process of attempting to install an outside switch for a radon mitigation system. However, I am unable to drill through the remaining part of the block wall. I have an M12 Fuel hammer drill and a carbide drill bit. I imagine something is in the way but what? If it was concrete in the floor I would guess rebar. The first part went through like butter. I have pictures: https://imgur.com/a/hCed4u8

  • Bell@lemmy.world
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    2 months ago

    I don’t know what it is but take the hint. Find another place to drill. It could be a plate protecting something, or a pipe.

    • NoImpression4899@lemmy.worldOP
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      2 months ago

      Yeah, I’ll try drilling somewhere else. I wasn’t too specific but given the location of that wall, I know for a fact there is no kind of pipe or anything in there.

  • CountVon@sh.itjust.works
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    2 months ago

    If it was concrete in the floor I would guess rebar

    Rebar is used in hollow block wall too:

    I’d remove one of those circular knockouts at the back of the wall box to drill an inch to the left or right.

  • DSkou7@programming.dev
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    2 months ago

    Might be rebar or other reinforcement in the wall. See if you can shine a light on the hole and see what you are hitting. You might have to vacuum or blow the dust out first.