PA Plumber
Addicted to ArboristSite
Nothing. Never felt the need, or had the patience, to clean chains before sharpening them. Maybe my grinder wheels don't last quite as long as they might with sparkly clean chains, but seriously, who cares? Grinder wheels are cheap.
a grinder
I have found that wood chips and pitch on the chain don't considerably slow down an abrasive wheel made for grinding steel.
:agree2::agree2:
Maybe I've been lucky. Haven't noticed a single thing I've needed to "clean" off a chain.
Only sharpen about 40, or more, times a year and don't cut much pine.