Our 3M™ Cubitron™ II Roloc™ Fibre Disc 987C uses precision-shaped grain technology (PSG) for heavy duty metalworking applications. 3M’s PSG is an exceptionally high-performing ceramic, resin-bonded to a stiff fiber backing.
Our 3M™ Fibre 987C products incorporate a grinding aid to keep the workpiece cooler, protecting heat-sensitive alloys from heat damage and reducing re-work. These features offer increased productivity for heavy-duty grinding on all metals, including stainless steel.
Recommended Applications
- Heavy duty metalworking applications
- Flame-cut edge cleanup
- Grinding
- High pressure grinding
- Right angle grinding
- Edge chamfering
- Weld removal and finishing
- Edge beveling
- Gate removal
123 PSG
To create PSG, engineers start with 3M™ Ceramic Abrasive Grain and use proprietary technology to form the grains into triangular structures and electrostatically orient them on the backing to form sharp peaks that maximize cutting potential. These peaks slice cleanly through metal, rather than gouging or plowing as traditional abrasive grains do; and continuously self-sharpen as the points break off. This generates a super-fast cut and lessens heat build-up due to friction, reducing heat-related stress cracks and discoloration. PSG also wears evenly, and because the abrasive stays cooler and sharper, Cubitron II products last significantly longer than their conventional ceramic counterparts, ensuring extended high performance in production applications. Our Cubitron™ II products achieve a fast cut rate and a long product life.

Dynabrade 53270 7" (180 mm) Dia. Right-Angle Disc Sander
3M 06856, Overspray Masking Liquid Dry, 15 Gallon, 7100136757
3M 57648, Dry Layup Adhesive 2.0, 7100074910
3M 45714, Cubitron II Hookit Cloth Disc 947A, 120+ X-weight, 3 in x NH, D/F 3HL, Die 300BE, 7100113113
3M 21339, Wetordry Paper Disc 431Q, 400 C-weight, 8 in x NH, Die 800L, 7000120331
3M 25777, Dry Layup Adhesive 1.0 09094, Red, 7000046595
3M 16579, Accuspray ONE Replacement Spray Gun, 7100096183
3M 77558, Cubitron II Hookit Cloth Disc 947A, 77558, 40+ to 120+, 6 in x NH, Die 600Z, 7100232737
3M 13879, Wetordry Paper Disc 431Q, 400 C-weight, 12 in x NH, Die 1200B, 7010363756
3M 21341, Wetordry Paper Disc 431Q, 320 C-weight, 8 in x NH, Die 800L, 7010363750
3M 24049, Wetordry Cloth Disc 281W, P1000 YF-weight, 8 in x NH, Die 800JM, 7000045052
3M 21347, Wetordry Paper Disc 431Q, 120 C-weight, 8 in x NH, Die 800L, 7010328265 
