Hi,
I need to drill a hole through an external wall for a new shower waste pipe. The problem is that my house was built in 1901 and the walls are just under 2 foot thick! The construction is of stone (solid I think) although not particularly hard stone - I have found it easy to drill holes in, even with cheap masonry bits. I think it is a type of sandstone.
Looking at core drills, I think I need a 50mm diameter drill for the 40mm pipe to allow for a bit of jiggling around, but they all seem to be of a maximum length of 150mm. I have read elsewhere about drilling to the max depth and then breaking off the core before starting again, using arbor extensions as you get deeper in. How easy is it to break off the core and with what and how do you do it, especially when drilling through a wall of such thickness.
Any tips or experiences would be much appreciated.
Thanks
I need to drill a hole through an external wall for a new shower waste pipe. The problem is that my house was built in 1901 and the walls are just under 2 foot thick! The construction is of stone (solid I think) although not particularly hard stone - I have found it easy to drill holes in, even with cheap masonry bits. I think it is a type of sandstone.
Looking at core drills, I think I need a 50mm diameter drill for the 40mm pipe to allow for a bit of jiggling around, but they all seem to be of a maximum length of 150mm. I have read elsewhere about drilling to the max depth and then breaking off the core before starting again, using arbor extensions as you get deeper in. How easy is it to break off the core and with what and how do you do it, especially when drilling through a wall of such thickness.
Any tips or experiences would be much appreciated.
Thanks