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  • You are going to use ascending diameter drill bits, yeah?
    6,8,10,12, 15mm for example.

    Your drill will thank you,
    and if you have to use the Hammer function,
    you'll do less damage to the wall.

  • If you are pilot drilling like that you should use bigger steps up. Too small change in diameter with a masonry bit you run the risk of the bit catching and being very difficult to remove.

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