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[–] 5 points 6 months ago (5 children)

You used water for cooling? Not like a machinist cooling oil?

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  • [–] [S] 12 points 6 months ago (4 children)

    No, the drill is hollow and you pump water through. Also helps to flush out the dust. Except when drilling Aerated concrete or something luke that, then you juat get your bit stuck.

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  • [–] 5 points 6 months ago (3 children)

    Neat... I always assumed they used the same lube as machining... but I guess you are more interested in keeping the bit cool opposed to the material, where machining is sort of the opposite.

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  • [–] [S] 8 points 6 months ago (2 children)

    Exactly. Ibalso used like 50l of water for this hole. Pumping in lobe would make a huge mess, and you would have to recycle it, but then there's sludge in in and so on.

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