30H Grit Triangle Double Segment Black for Soft Concrete

- Aggressive metal-bond diamond segment for early grinding steps — the 30-grit cutting surface opens up the concrete, removes coatings, exposes aggregate, and creates the profile needed for subsequent grinding and polishing. The triangle segment shape delivers an aggressive entry into the cut and is commonly used to expose medium-to-large aggregate quickly. 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 soft concrete — soft concrete (typically under 2,500 PSI, Mohs 2–3) is highly abrasive and wears diamonds out fast. The hard metal bond (the "H" in 30H) holds the diamonds in place longer, giving you usable tool life on a slab that would chew through a softer-bond segment in a fraction of the time.

- Counterintuitive but correct: hard bond on soft concrete, soft bond on hard concrete — using the wrong bond for the floor causes either premature wear (soft bond on soft floor) or diamond glazing where the tool slides without cutting (hard bond on hard floor). Run a Mohs scratch test before committing to a bond if you're unsure of the slab's hardness.

- Color-coded by manufacturer for quick identification — the black designation is Simiron's color code for this soft-concrete bond. Most contractors keep three-color sets on the truck (one bond per concrete hardness category) so the right segment can be selected on-site once the slab is tested. After the 30-grit cut, the typical sequence steps up through 50, 80, and 100-grit metals, then into transitional and resin polishing pads.