Sharpening Bushers

Quoted text begins.What makes it a "sintered" blade?
End of quote.

Hi Bill M,

'Sintered' means 'crystallised', that is, the diamond borts are integrated
within a (powdered) metal matrix through physical pressure and heating, as
opposed to diamond borts embedded in a molten matrix through electroplating.
The different forming processes have separate applications according to
varying cutting requirements.

For a bit more info: http://www.au.partner-industrial.com/node36.asp

And if you have a spare moment, read this!....
http://www.1911encyclopedia.org/D/DI/DIAMOND.htm

Simon