On Tue, 23 Feb 2010 13:51:54 GMT, Cicero
wrote:

I don't think you'll need any extra work (with a Dremel) if you buy the
correct cutter or a single Forstner bit.


It's a replacement for one currently fitted into a punched metal
framework, a quick measurement late at night with a metal tape (and my
dodgy eyes) gave me the 25mm dimension, given a wide enough
manufacturing tolerance it might even fit without further work.


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