Concrete core drill.
Fullsize image: https://s3-us-west-1.amazonaws.com/h...m_fullsize.jpg
https://s3-us-west-1.amazonaws.com/h...g_bathroom.jpg
Fullsize image: https://s3-us-west-1.amazonaws.com/h...1_fullsize.jpg
https://s3-us-west-1.amazonaws.com/h..._bathroom1.jpg
Previously:
https://www.homemadetools.net/forum/...533#post201072
https://www.homemadetools.net/forum/...950#post202778
https://www.homemadetools.net/forum/...726#post201853
https://www.homemadetools.net/forum/...924#post194685
https://www.homemadetools.net/forum/...502#post170045
