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Old 12.08.2020, 09:09
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Re: Help needed - drill holes in concrete wall

Word of warning with SDS drills be careful and take your time they can be aggressive and blow chunks of the concrete out of the wall rather than just drilling a nice hole.

Allow the bit to chomp away slowly doings its work rather than adding lots of pressure, especially for the first 5 cm or so. Maybe start with a smaller bit size and work your way up.

Secondly, I see no one has mentioned rebar/metal-reinforced concrete, I guess this exists in Switzerland and it's a pain in the neck when I came across it in NL.
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