Segmento único de metal de grano 25, unión media, rojo

- Aggressive metal-bond grinding segment for the first cutting pass — 25 grit is the standard starting point for most surface prep and polishing jobs. The cutting surface opens up the concrete, removes coatings, exposes aggregate, and creates the profile needed for subsequent grinding and polishing steps.

- Single-segment configuration for aggressive cutting on light machines — a single segment per shoe creates less surface contact than a double, which means faster cutting speed and more aggressive material removal at the trade-off of shorter tool life. Recommended for grinders 25" and smaller, where the lighter machine weight benefits from the increased per-diamond pressure that a single segment delivers.

- Engineered 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 is balanced for this hardness to give steady cutting speed without premature wear or diamond glazing. The red color code is the universal industry marker for medium-bond tooling.

- The default choice when slab hardness is unknown — most contractors start a new job here and switch to harder (for soft concrete) or softer (for hard concrete) bonds 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 you're working on an unfamiliar slab.

- The most-stocked tooling on a contractor's truck — since the vast majority of commercial and residential concrete falls in the Mohs 5–6 range and 25 grit is the standard first-pass starter, this single-segment red configuration is the workhorse of the metal-bond range. After this pass, the typical sequence steps up through 50, 80, and 100-grit metals, 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.