I have both of these and they’re great for some things.
I have not done enough experimentation to know the precise
parameters that work/don’t work for each option of each roller. I do
note that the finest wheels of the smaller one are probably only
useful for foil… or for creating wire snippets for making
consistent granules or something.
They seem well engineered; whether they’re useful or not is more of
a question. I’ve definitely used both of them for some things, but
I’ve also run into frustrations. Had I world enough and time, I’d do
a comprehensive series of tests, but there’s usually something more
Sorry I can’t be of more help! I will say they seem like
nicely-built equipment, but I can’t say whether they’d be useful for
any particular thing offhand, without knowing more about the