The 3M Cubitron 3 Fibre Disc 1187C is a high-performance abrasive disc used on right angle grinders for heavy material removal tasks like weld grinding and edge beveling. It features re-engineered Precision Shaped Ceramic grain, which continuously fractures to maintain sharp cutting points throughout the disc’s life, meaning you spend less time changing discs and more time working.
- Efficiency: The disc cuts exceptionally fast, allowing you to complete more parts per disc and reducing the total time required for tough grinding jobs.
- Durability and Consistency: The Precision Shaped Ceramic grain ensures the disc wears evenly and keeps its sharp edge longer than traditional abrasives, delivering consistent performance from the first cut to the last.
- Versatility: With a stiff fiber backing and strong resin bond, this 7-inch disc is robust enough for high-pressure applications, including heavy grinding and challenging weld removal.
Who this is best for
This disc is ideal for fabricators, welders, and industrial maintenance shops performing extensive metal stock removal, aggressive weld grinding, or beveling where maximum throughput and disc longevity are critical.



