Has anybody fitted a stainless undermounted sink underneath a finished granite worktop? The sink instructions suggest drilling a series of holes underneath the worksurface and attaching brackets via a m6 stud and insert. After paying a fortune for the granite I don't want to start drilling with a diamond tip bit, it could crack around this weak part of the surface! I have seen these sinks glued in. Does anybody know what resin or glue is suitable for this installation. Advice much appreciated.