✕DO NOT FORCE THE FIT
- Not for the grout saw — the 19403 is that tool's blade, and the two products share a shelf category name and nothing else.
- Not for the 4"/6" hammer-scraper heads in the scrapers line, per the corpus identity and the unresolved flag ⚑.
- Not a hand tool on its own: an unmounted 5" edge has no business in a bare palm; the parents exist so the edge arrives with leverage and knuckle clearance.
- Not for suspect pre-1980s floors under any argument — 2a's boundary is a stop sign, not advice.
- And nothing on this page is struck with a hammer, mallet, or anything else — not because the technique is exotic, but because until the identity flag resolves, no copy in this corpus tells a customer to hit these tools with anything.