How to drill holes in rocks is the question I had in ... to a lot of low cost rocks so I have been experimenting with small rock diy projects like this stone stool. I used my ryobi hammer drill ...

Typically, a drill/hammer drill is for small holes and a rotary hammer is for larger holes that are more than ⅜- inch in ...

Plus, every rock formation is different, often requiring a unique approach to each formation. This often involves experimenting with different horizontal directional drill rigs, attachments ...