Quote:
Originally Posted by 908/930
Will a rotary hammer drill crack the flagstone? I think my large Hilti rotary hammer will break the stone. Diamond core will work, keep water flood on it should be able to do possibly all the holes.
I use a variable speed polisher that has a 5/8-11 spindle, works well with core bits, can use a piece of 3/4 ply with a 3/4 dia guide hole in it to help with starting the hole.
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It wouldn't crack a 2" thick flagstone. Use the smaller roto-hammer it should be fine. flagstones are soft. Hole saw takes too long.