Metal Bond Diamond Grinding Disc
Metal-bond diamond grinding disc with radial segments for fast, aggressive grinding of concrete floors and stone surfaces. Long life under heavy floor grinder use; the first step before resin polishing.
| Diameter | 3" (80 mm) / 4" (100 mm) |
|---|---|
| Grit | 16# / 30# / 50# / 120# / 200# |
| Bond | Metal, sintered |
| Attachment | Velcro / M14 |
| Segment | Radial sectors |
| Application | Concrete floor, terrazzo, stone |
| Packaging | Poly bag / box |
| MOQ | 100 pcs per grit |
About the Metal Bond Diamond Grinding Disc
Metal bond is the bond that survives the first, roughest step: sintered metal holds the diamond until it wears flat, so the disc keeps cutting under the weight of a floor machine. Resin pads cannot do this job — they are for refining a surface that has already been ground flat by a metal disc like this one.
Typical applications
- First grinding step — Opening and levelling concrete before any resin polishing.
- Terrazzo and stone floors — Grinding back to a consistent surface without dishing.
- Coating removal — Cutting through epoxy and thin screeds on walk-behind machines.
How to choose the right specification
- Grit by step — 16# / 30# for cutting and levelling, 50#–120# to refine, 200# as the handover to resin pads.
- Bond hardness — Softer bond for hard dense concrete, harder bond for soft abrasive floors — tell us your floor type and we will match it.
- Attachment — Velcro for quick change plates, M14 for direct spindle mounting on hand machines.
Supply, packing and OEM
Poly bag or box, 100 pcs per grit per grit. Bond hardness is the variable most suppliers ignore; we keep three bonds in production so a floor contractor can be matched to the concrete rather than making do with one compromise.
Standard packing is poly bag / box, minimum order 100 pcs per grit per size, with mixed sizes accepted on a first order. Bulk orders typically ship within 25–40 days after deposit, FOB Shanghai or Ningbo — about 2.5 hours from our workshop in Danyang.
Most of this item ships to Canada, Europe, Australia, Japan, the Middle East and South America. Tell us the destination market and we match the sizes, thread standard, marking and packing language it uses — metric for Europe, Japan and South America, imperial where the trade still buys in inches, and carton copy in the language your customers read — then quote FOB, CIF or DDP against your order size.
Related products: quick change metal discs, 230 mm grinding disc, Turbo Cup Grinding Wheel (Brass).
More from Grinding & Polishing
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