16S Grit Triangle Double Segment Blue for Hard Concrete

- Most aggressive metal-bond diamond segment for heavy prep work — 16 grit is the coarsest standard size, designed to tear through thick coatings, heavy mastic, epoxy overlays, glue, and badly worn or contaminated concrete surfaces in a single aggressive pass. The triangle segment shape delivers an aggressive entry into the cut, ideal for the toughest stock removal jobs. Fits any walk-behind grinder using the Lavina-style mounting pattern (three 9mm holes).

- Triangle double-segment configuration — the triangular geometry creates a leading edge that bites aggressively into the slab, while the double-segment layout (two triangles per shoe) doubles surface contact for better tool life and a more uniform scratch pattern. Best paired with larger / heavier walk-behind grinders (25" and up) where the extra contact patch helps the machine pull weight.

- Engineered specifically for hard concrete — hard concrete (typically 5,000+ PSI, Mohs 7+) doesn't wear diamonds down enough to keep them sharp, causing the segment to "glaze" and slide across the surface without cutting. The soft metal bond (the "S" in 16S) wears away faster on purpose, continuously exposing fresh diamond and keeping the cut aggressive.

- Counterintuitive but correct: soft bond on hard concrete, hard bond on soft concrete — using the wrong bond on a hard slab causes glazing, where the diamonds polish smooth and stop cutting entirely. If you see glazing on the job, switching to this softer bond (or reducing machine weight, slowing RPM, or adding water mist) reopens the diamonds and restores the cut.

- Step-zero tool for the toughest prep jobs — use the 16-grit before stepping up to 25 or 30 grit when the floor has heavy coatings or significant surface irregularities. After this pass, the typical sequence steps up through 25/30, 50, 80, and 100-grit metals, then into transitional and resin polishing pads. Leaving deep scratches at this stage is fine — the next grits are designed to remove them.