3M Cubitron II Fibre Disc 987C, TN Quick Change, 4-1/2 in, 60+, 25 per inner, 100 per case

3M Cubitron II Fibre Disc 987C offers significant gains in productivity on medium to heavy-duty operations thanks to the 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.