Kraft Tool's 12 in. Plaster Scarifier works best when pulled across walls or ceilings prior to finishing, ensuring proper bonding of finish coats and minimizing risk of finish separation. The tine layout, uniform spacing, and tine width are engineered to distribute scratch marks without weakening the substrate. The red finish on the handle aids visibility on a busy job site while protecting against rust. This tool supports consistent plaster work, reliable surface prep, and improved overall finish quality.