I don't. Unfortunetly this is something I have very little skill at, sharpening blades of all kinds. Sorry. I have friends do it to my pocket knives and kitchen knives but not to my grinder because I don't own one but my friends do. Several and I've seen the natural progression. A buddy at work bought a $200 unit, tore it up and is now looking in the $400 range.

It's good to have at least one friend with a meat grinder!

Tom