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  • Meanwhile, over in the idiot corner...

    I'm trying to drill through concrete (concrete ceiling), so I bought an absurdly expensive drill bit that says it's designed for concrete (but it is not suitable for aggregate).

    Well, by a process of elimination I guess I'm trying to drill through aggregate because I was only able to make three 2cm holes before the bit was chipped to shit and not making any headway.

    I'm just trying to fit a new light fixture to the ceiling. Any tips?

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