- 3M Precision Shaped Grain (PSG) maintains super-sharp points that cut exceptionally fast with less pressure
- PSG runs cooler and disc life is significantly longer, completing more parts per disc and requiring fewer disc changes
- Stiff fiber backing and a strong resin bond provide durability and tear-resistance for heavyweight applications such as high-pressure weld grinding or beveling
- Grinding aid incorporated on the disc minimizes grinding temperatures for heat-sensitive alloys
3M™ Cubitron™ II Fibre Disc 987C offers significant gains in productivity on medium to heavy-duty operations with our exceptionally high-performing 3M Precision Shaped Grain combined with a stiff fiber backing. This disc achieves a higher cut-rate, greater durability, and longer life than other fiber discs—all with less grinding pressure.