The Advanced Solution for Challenging Applications
Balance cost and output by selecting the abrasive with precisely the right amount of cut and life, no more and no less. 3M™ Roloc™ Fibre Disc 787C contains the exact amount of precision shaped grain (PSG) you need to optimize the balance of speed and longevity for challenging applications from grinding to deburring. Moreover, to keep the disc and workpiece cool, a grinding aid is incorporated, further prolonging disc life. Disc construction includes a stiff fiber backing and strong resin bond that provide durability and tear-resistance, which along with premier abrasive grain enables operators to complete more parts per disc and requires fewer disc changes.
The exceptional life and cut of our 787C Fibre Disc make it one of 3M’s best grinding discs for high production environments, providing significant gains over conventional fiber discs. When our highest-tier fiber disc may be under-utilized but productivity is still your bottom line, our 787C Fibre Disc delivers outstanding throughput. This fiber disc is an excellent choice for a range of applications such as:
- Edge chamfering
- Beveling
- Deburring
- Weld removal
Step Up Production with 3M Precision Shaped Grain
Developed for improved output on light to heavy stock removal, 3M Precision Shaped Grain lets operators finish tough tasks faster and with less fatigue. It wears evenly, and because the abrasive itself stays cooler and sharper, PSG abrasives last significantly longer than their conventional ceramic counterparts, ensuring extended high performance in production applications.
To accomplish this level of performance, 3M engineers apply proprietary microreplication technology to create precise triangular structures of 3M™ Ceramic Abrasive Grain, and then electrostatically orient them on the backing to form sharp peaks. These ultra-sharp peaks slice cleanly through metal rather than gouging or “plowing” as conventional abrasives do, and continuously self-sharpen as the points break off.
Roloc™ System Enables Easy Tool Attachment
To suit many different project needs, we offer these discs in a range of sizes and a variety of attachment styles. The 3M™ Roloc™ Fibre Disc 787C is available in 2-4″ diameters for use with the following Roloc attachment systems: TSM and TR. Please select discs with the attachment design made for your system. We also offer 3M™ Fibre Disc 787C in larger sizes with a center hole or GL and TN attachments (sold separately).
Tips for Optimal Use
Fiber discs are heavy-duty abrasives that feature a tough, stiff backing made from vulcanized fibre that resist wear and can handle tough grinding applications. For optimal performance, the disc should be used with a 3M™ Roloc™ Disc Pad of the appropriate density for the application—a softer disc pad for lighter weight grinding applications, and a harder density disc pad for more heavyweight grinding applications. Using the correct pad for the application ensures that the abrasive mineral will re-sharpen, maximizing the life of the abrasive.
3M Engineered for Peak Productivity
3M Abrasives engineers know abrasive construction. For more than 100 years 3M has been a leading abrasive supplier for the metalworking and woodworking industries, and we offer a complete line of high quality metalworking abrasive solutions to meet your tough jobs. Our 3M™ Roloc™ Fibre Disc 787C is designed to enable operators to take production to the next level by completing more work in less time. It is a prime example of how 3M science provides advanced solutions to help industrial businesses operate faster, better and more efficiently.

Dynabrade 90353 3-1/2" W x 15-1/2" L 60 Grit A/O DynaCut Belt, 10/ pack
Dynabrade 15346 Contact Wheel Ass'y, 2" Dia. x 5/8" W x 5/8" I.D., Crown Face, 40 Duro Rubber
Dynabrade 92585 3-1/2" Dia. x Medium Hook-Face Surface Conditioning DynaBrite Disc, 10/pack
Dynabrade 02649 Bearing
Dynabrade 11007 Idler Arm Assembly
Dynabrade 79123 1/2" W x 18" L 60 Grit DynaCut Premium Ceramic Belts, 50/pack
Dynabrade 53047 1/4" Drill Right Angle, .4 HP, Rear Exhaust, 15,000 RPM
Dynabrade 52418 3" (76 mm) Straight-Line Central Vacuum Flush Cut-Off Wheel Tool
Dynabrade 53232 7" Dia. Type 27 Vertical Depressed Center Wheel Grinder, 2 HP, 6,000 RPM, 5/8"-11 Spindle
Dynabrade 01495 1/8" (.125) Capacity Collet Sleeve
Dynabrade 60051 .1 hp Straight-Line Quick-Change Pencil Grinder, Rear Exhaust, 60,000 RPM, 1/8" Collet
Dynabrade 91567 6" Dynacut Extreme Orange Premium Film Disc, 180 Grit, Hook & Loop, Vacuum Holes, 50/Box
Dynabrade 47201 .4 hp Straight-Line Die Grinder, Rear Exhaust, 3,200 RPM, 1/4" Collet
3M 77197, Scotch-Brite™ Roloc™ Deburr and Finish PRO Unitized Wheel,TR, 3 in x 1/8 in x NH, 8C CRS+, 7100109130, 40/box
Dynabrade 15111 Felt Silencer
Dynabrade 98275 - 1/2" Male Coupler with 1/2" Male Plug Assembly
Dynabrade 25286 Label, Warning-1.3 HP Grinder
3M 22394, Roloc Disc 361F, 50 YF-weight, TR, 3 in, Die R300V, 7000045096
Dynabrade 79876 3" 1000 Grit Dynacut Extreme Orange Film Vac Hook Face Disc, 50 per box
3M 53914, Performance Plus Duct Tape 8979N Nuclear Red, 48 mm x 54.8 m 12.1 mil, 7000049014, 24/ case
Dynabrade 51700 .1 hp Straight-Line Pencil Grinder, Rear Exhaust, 60,000 RPM, 1/8" Collet
Dynabrade X3252V - 3" Mini Extreme & 5" Extreme Random Orbital Sander, Vac, Combo Kit 12,000 RPM, 3/32" Dia., Rear Exhaust
Dynabrade 96746 General Purpose Cleaning Kit
Dynabrade 82445 6" Dia. x 120 Grit A/O Hook Non-Vacuum Film-Backed DynaCut Disc, 100/Box
Dynabrade 40611 Electric Dynafile II Abrasive Belt Tool Versatility Kit
Dynabrade 54744 4" (102 mm) Dia. Right Angle Type 1 Cut-Off Tool, Steel Housing, .7 HP, 13,500 RPM, 3/8"-24 Spindle
Dynabrade 31919 - 20' Long D-Block Vac Hose Assembly
Dynabrade 52436 4-1/2" (114 mm) Dia. 7 Degree Offset Vacuum Cut-Off Wheel Tool
Dynabrade 51430 5" Dia. 7 Degree Offset Rotary Buffer, .4 hp, 3,200 RPM, Rear Exhaust, 3/8"-24 Spindle Thread
Dynabrade 52212 .5 hp 7 Degree Offset Die Grinder, Front Exhaust, Short Shank, 20,000 RPM, 1/4" Collet
Dynabrade 43515 .4 hp 6" (152 mm) Extension Die Grinder, Rear Exhaust, 25,000 RPM, 1/4" Collet
Dynabrade 32011 "Y" Inlet
Dynabrade 90266 3-1/2" W x 15-1/2" L 36 Grit A/Z DynaCut Belt, 10/pack
Dynabrade 52861 .4 hp Straight-Line Pencil Grinder, Rear Exhaust, 25,000 RPM, 1/8" Collet
Dynabrade 63604 RaptorVac VacuumHead Replacement for 61204 & 61205
Dynabrade 57575 6" Dia. Wet Dynorbital Supreme Random Orbital Sander, Deluxe, 3/16" Orbit
Dynabrade 11394 DF II Contact Arm Ass'y, 24" Belt Offset
Dynabrade X3161V - 3" Mini Extreme & 6" Extreme Random Orbital Sander, Vac, Combo Kit 12,000 RPM, 3/16" Dia., Rear Exhaust
Dynabrade 52221 .5 hp 7 Degree Offset Die Grinder, Rear Exhaust, Short Shank, 18,000 RPM, 1/4" Collet
3M 77559, Cubitron II Hookit Cloth Disc 784F, 77559, 36+ to 120+, 5 in x NH, Die 500X, 7100232738 
