Use a square or angle finder to determine if the corners are square. If not, determine if they are wider (obtuse) or tighter (acute) than 90 degrees. If the corner angle is wider, your miter angles ...

Y ou can't cut perfect miters with a dull blade, one with too few teeth or one that's designed for ripping. Check your blade ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? The first step in installing attractive wood trim is marking its length accurately.