Tom, is this what you’re looking for?
https://www.gemsociety.org/article/choosing-right-faceting-machine/
For others – keep in mind that Jeff Graham had strong opinions but was not unbiased.
Tom, is this what you’re looking for?
https://www.gemsociety.org/article/choosing-right-faceting-machine/
For others – keep in mind that Jeff Graham had strong opinions but was not unbiased.