In the back of my mind I recall a small planer that used single edged razor blades. Does this ring a bell with anyone? I'm studying wood identification using a hand lens. Eventually, I'll graduate to a microscope so the slice has to be very clean.
I'm not able to make a good slice manually so the sample does not have enough clean surface for detailed inspection.
Of course, if you have an idea that would accomplish the same thing please let me know.
Thanks,
Burt