Basement Wall with Stucco/Concrete that needs to be removed
That is a skim coat and depending on how well it was applied it can be difficult to remove. I use a needle scaler (welders use these to relieve stress and quickly clean slag from rust) I got my first one from harbor freight years ago and literarily war it out doing similar work. It is not hard but time consuming. I don’t know if there is an electric version but it was recommended by a friend that is a millwright.
needle scaler. I googled needle scaler and there are quite a few on line the last one I purchased from HF has probable been used over 100 hours, the one before that lasted 10+ years they really make the job easy. I have no connection to HF except having purchased a few of there tools some are real junk but I have a few that have been recommended by friends that have lasted well beyond my expectations.