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.

Binks 72-84040, Die Cast Ball Valve 3/8" x 3/8"
3M 27008, 642WY, 3" X 30", 50000 Mesh, Diamond Cloth Belts, 7010533172
3M 11414, Roloc Disc 361F, P120 XF-weight, TR, 1 in, Die R100N, 7000045104
3M 07926, Floor Surfacing Discs, 7 in x 7/8 in, 30 Grit, 7010401392
3M 14270, Disc Pad Face Plate, 4-1/2 in Hard Black, 7000144144
3M 26481, 641WY, 3" X 30", 100 Mesh, Diamond Cloth Belts, 7010508917
Dynabrade 93651 1-1/2" Dia. x 1/2", 8-32 Female Center Thread, 60 Grit A/O, 8 Ply, J-DynaCut Cross Pad, 100/pack
3M 05742, Hookit Soft Hand Block, 2-3/4 x 5 in, 7000045436
3M 13670, Stikit Paper Disc Roll 363I, 5 in x NH, 5 Hole, 80 F-weight, D/F, Die 500FH, 7010298815, 100 discs per roll
ACS CX1250 Diamond Belt, 1/2" X 24" 125u
3M 01326, PSA Cloth Disc 348D, P240 X-weight, 3 in x NH, Die 300V, 7000045069
3M 27376, Cross Pad 341D, 2 in x 2 in x 1/2 in, P120 X-weight, 7100105507
3M 86745, Diamond Disc, 2" Roloc, 674W, 120 Mesh, TR, 7100022116, Box of 10 
