Pretty basic question.
I need to make 2 holes each about 30mm diameter in a cavity wall. Usual brick external and block internal with blown fibre insulation.
What is the best way to go about this?
This is a one off that I don't expect to do regularly so I don't want to spend a fortune.
I have a Makita drill with a 13mm chuck rated to 20mm of concrete. Bricks are red 1960s and not overly hard.
Thanks for any advice.
(This is one thing I can't see a way to do with my angle grinder unless I want to do a great deal of filling)