Iffin yer using a Kalamazoo-type cutoff saw, they are supposed to
have a chip wheel/wire brush. Allows tighter guide-wheel tolerance,
for straighter/better cuts.

Ig, even my 50-year-old Kalamazoo #8 has those wipers -- and they're
important with tight guide clearance; keep them properly adjusted and
renewed as necessary.

LLoyd