Some experiments with a 60 degree bit in stone at 40 inches per minute and .02" DOC.
is that a diamond point bit?
Nope. Just cheap engraving bits. I have a ton of them but one bit cut all of these - except “ROCCO” which was cut with a destiny viper v-bit (I don’t want to ruin that one!)
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Like Like Like!!! Very cool…
if you cut stone you can use water mister to keep the surface wet.
The bits will last longer wet than dry.
Just have to cover your machine with some bags to prevent splash.