Tiling

Keying thinset into both surfaces, combing straight ridges along the tile's short side, and sliding the tile across them for full coverage.

Sealing subfloor holes with big-gap expanding foam before a self-leveler pour, trimmed flush the next day.

Restoring a slow-cutting diamond blade by grinding off its glazed surface layer.

Feeding water to a grinder's diamond blade with a soaked sponge for chip-free porcelain cuts.

Clean seams where two different floor materials meet.