Chip Brushes - What so you use them for
Sometimes a crap brush is all that is needed. If I'm making a custom stain, I'll use a handful of them making my samples- use and throw.
Anything that is real rough , needs natural bristle and doesn't matter if a few hairs get loose.
But for the most part- if you dont know that- dont use them. Better to have a crap synthetic - not as likely to loose hairs.
"It's better to come here with questions before you screw up than to come here after and ask how to fix them."- JS