Dave Sr. from SWISCO responded:
July 15, 2020
You will need to use a masonry drill bit to drill into the hard surface you will be drilling into. Also see if you have or can get your hands on a "Hammer type Drill". A helpful hint would also to have a "cup" of water to cool down the drill bit when drilling into the hard surface. And lastly wear some type of face shield or safety glasses when drill to protect you from the dust while drilling! |