On 26/03/2021 11:29, Bert Coules wrote:
Dave Plowman (News) wrote:

Masking tape can work - starting out with a small drill. Or if you have
one of those old tile scorers - the sort you use before snapping them.
Just used to break the glaze.

Since the surface of the tile immediately around the fixing holes will
be covered by the base of the mounting brackets for the grab rail, I
have wondered about trying to scratch off the glaze where the holes have
to go in order to provide better grip for the drill bit.Â* Something to
try on my test tile.


Be careful that the scratch doesn't extend beyond the diameter of the
hole or it could be the starting point for stress crack in future.

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