25M Grit DOT Segment Medium Red for Medium Concrete

- Aggressive metal-bond diamond segment for the first grinding step — the 25-grit cutting surface opens up the concrete, removes coatings, exposes aggregate, and creates the profile needed for subsequent polishing or coating application. Fits any walk-behind grinder using the Lavina-style "dot" segment pattern (three 9mm mounting holes).

- Engineered specifically for medium concrete — medium-hardness concrete (typically 3,000–5,000 PSI, Mohs 5–6) is the most common slab type found on commercial and residential floors. The medium metal bond (the "M" in 25M) is balanced for this hardness, giving you steady cutting speed without premature wear or diamond glazing.

- The default choice when slab hardness is unknown — most contractors start here on a new job and switch to the harder (black) or softer (gold/white) bond only if testing or visible wear shows the medium bond isn't matched to the floor. Run a Mohs scratch test before committing to a full set if accuracy matters.

- Color-coded by manufacturer for quick identification — the red designation is Simiron's color code for the medium-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.

- First step in a typical grind-and-polish sequence — after the 25-grit metal opens the floor, the progression moves up through finer metal grits (50, 100), then into transitional and resin polishing pads. A clean cut at 25 grit is what makes every step afterward faster — leave scratches here and you chase them all the way to the final pad.