I used to have a fancy diamond tipped core bit for glass tiles, which had a self-dripping water reservoir above it.
For anything else, I just used one of the triangular bits & went slowly.
@NotThamesWater started
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I used to have a fancy diamond tipped core bit for glass tiles, which had a self-dripping water reservoir above it.
For anything else, I just used one of the triangular bits & went slowly.