3M Cubitron II Fibre Disc 987C is powered by 3M Precision-Shaped Grain technology for heavy-duty metalworking applications. This mineral is an exceptionally high-performing ceramic, resin-bonded to a stiff fiber backing. 3M Fibre 987C products also 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.
Ideal for Robotic Weld Grinding
In medium and high-pressure applications like robotic weld grinding, its important to choose a high-performance abrasive that cuts fast and lasts long. The self-fracturing mineral in 3M Cubitron II Fibre Disc 987C will keep your robot grinding welds long after other abrasives call it quits, reducing downtime and maximizing efficiency.
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
About 3M Precision-Shaped Grain
To create 3M Precision-Shaped Grain, 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. The mineral also wears evenly, and because the abrasive stays cooler and sharper, 3M Cubitron II abrasives last significantly longer than their conventional ceramic counterparts, ensuring extended high performance in production applications.

Dynabrade 53080 1/2" Right Angle Drill, .7 HP, Rear Exhaust, 3,400 RPM
Dynabrade 51705 .1 hp Straight-Line Pencil Grinder, Rear Exhaust, 50,000 RPM, 3/32" Collet
Dynabrade 78780 3/8" x 1-1/2"-W176 Dynacut Cotton Fibre Polishing Mounted Point, 120GFX, 10/pack
Dynabrade 93394 4" Dia. x 1/2" Center Hole, 150 Grit, A/O,. Arbor-Mount Sanding Star, 10/pack
Dynabrade 15108 Knob Assembly
Dynabrade 11462 Dynabelter Finisher
Dynabrade 76020 Lubri-Pak
Dynabrade 11738 Contact Arm Adapter
Dynabrade 61470 Raptor Vac Pneumatic Vacuum - Wall-Mount Style, 1.5 Gallon
Dynabrade 78292 2" Dia. x 6A M Medium Type R Unitized Locking-Type Disc, 25/pack
Dynabrade 82558 1/8" W x 18" L 80 Grit Ceramic DynaCut Belt, 50/pack
Dynabrade 78733 7/8" x 2"-A11 Dynacut A/O Mounted Point, Vitrified, 5/pack
Dynabrade 78696 D8-6 Cartridge Roll Mandrel 1/8" Pilot Dia. x 3/4" Pilot Length, 1/4" Dia. Shank x 6" Shank Length
Dynabrade 92768 4" W x 150' L 60 Micron A/O Microfinishing Film DynaCut Roll
Dynabrade 51393 6"-8" Dia. Right Angle Two-Hand Rotary Buffer, 1 hp, 4,500 RPM, Rear Exhaust, 5/8"-11 Thread
Dynabrade 78562 3" Dia. 2-Set, 1/4-20 Female Center Thread, 80 Grit, Dynacut A/O Overlap Slotted Disc, 100/pack
Dynabrade 78728 1/8" x 3/8"-B97 Dynacut A/O Mounted Point, Vitrified, 5/pack
Dynabrade 96355 Phillips Screwdriver
Dynabrade 50610 6" Dia. Vacuum Disc Pad, Hook-Face, Long Nap
Dynabrade 79492 4-1/4" Dia. x 4" W x 5/8"-11 Center Thread, Medium, DynaBrite Surface Conditioned Flap Roll
Dynabrade 64423 Mist Trap
Standard Abrasives 717851, A/O Straight Cartridge Roll, 1/8 in x 1 in x 5/64 in 240, 7100102797
Dynabrade 90424 1/4" W x 24" L 220 Grit A/O DynaCut Belt, 50/pack
Dynabrade 56830 6" Dia. Central Vacuum Dynorbital Supreme Random Orbital Sander, 3/16" Orbit
Dynabrade 80022 Dynamount Bench Mount (for Dynabelters)
Dynabrade 02038 Front Bearing Plate
Dynabrade 92748 2" W x 50' L 30 Micron, Diamond Lapping Film DynaCut Roll
Dynabrade 78734 3/4" x 1-1/8"-A5 Dynacut A/O Mounted Point, Vitrified, 5/pack
Dynabrade 51922 Front Bearing Plate 
