30 Grit 3" 10 Seg Metal- Medium Bond Red

- Aggressive metal-bond grinding disc for the first cutting pass — 30 grit is a common starting point for surface prep, coating removal, and aggregate exposure. The cutting surface opens up the concrete, removes coatings, exposes medium-to-large aggregate, and creates the profile needed for subsequent grinding and polishing steps.

- 10-segment configuration for the 3" Redi-Lock platform — ten diamond segments arranged around a 3" / 80mm Redi-Lock or 2-pin compatible plate, designed to fit Husqvarna PG-series, STI/PrepMaster, Stonekor, and similar small-format grinders. The smaller disc format is sized for edge grinders and compact floor machines where the larger 7"–10" tooling won't fit.

- 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.

- Counterintuitive but correct: medium bond is the default starting point — 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. The red color code is the universal industry marker for medium-bond tooling.

- Best starting grit for medium-to-large aggregate exposure — per industry guidance, 30 grit is the recommended first step when exposing medium-to-large stone. After this pass, the typical sequence steps up through 50, 70, and 120-grit metals, then into resin polishing pads beginning at 50 grit resin. Best paired with a HEPA-vacuumed shroud for OSHA silica compliance during indoor work.