In article ,
Dave Gibson wrote:

Problem - all my cisterns are ceramic, and the hole where the button goes
(the ex-handle hole) was smaller than the thread on the button - by about
3mm.

My dad had this problem when he tried to fit one - 30 seconds with my
dremel cured it :-)

Another one of those tiny jobs that the dremel is brilliant at. There aren't
many but it is dead handy at times.

Darren