Browse Forums General Discussion Re: Drilling through limestone? 2Apr 04, 2014 2:22 pm A core drill with a 60-70mm bit ( the drill bit is like a hollow steel tube with diamond bits embedded into the leading edge of the bit ) . How neat does the hole have to be and what is the hole for? Stewie I use Tramex moisture meter and it will tell me instantly if the wall is cement sheet or plaster or masonite but most people dont have the equipment. 5 7094 yep sounds good make the footing bigger to to allow for the pipe in the middle 3 7326 Hi When it rains in a particular direction water comes through the security door. It hits the main door and the bottom swells and jams. There is already a cover over the… 0 38448 |