How to expand a hole in drywall without dust.
When we built our house, we installed halogen light fixtures. I was fed up with them. Several of them burned out every month! Over the course of 10 years, the fixtures had warped from the heat, the panels above them had charred and burned through in several places! The wires from the sockets were melting and charring. I decided to replace the fixtures and install powerful LED bulbs at the same time. But the diameter of the fixtures for these bulbs is 80 mm, while the original ones were 60 mm. So, the holes need to be enlarged, but without introducing dust.