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 51756 .1 hp Straight-Line Extension Pencil Grinder, Rear Exhaust, 35,000 RPM, 1/8" Collet						
Dynabrade 10694 Inline Air Regulator						
Dynabrade Nitro Series DGR31 .3hp, 16,000 RPM, Right Angle Die Grinder, 1/4 Collet						
Dynabrade 48327 .4 hp Straight-Line Die Grinder, Rear Exhaust, 30,000 RPM, 1/4" Collet						
Dynabrade 54730 3" (76 mm) Dia. Right Angle Type 1 Cut-Off Tool, Rear Exhaust, .7 HP, 18,000 RPM, 3/8"-24 Spindle						
Dynabrade 13072 Arbor Ass'y, 1/2"-20 Thread, 2" Expander						
Dynabrade 11255 Contact Arm Ass'y, 5/8" Dia. x 3/8" W, Rubber Wheel, with no Platen						
Dynabrade 51306 .5 hp Straight-Line Die Grinder, Rear Exhaust, 20,000 RPM, 1/4" Collet						
Dynabrade 52718 Cone or Plug Wheel Grinder, 20,000 RPM, 3/8"-24 Male Thread Spindle						
Dynabrade 51742 .1 hp Straight-Line Pencil Grinder, 60,000 RPM, 3mm Collet, w/ Mounted Stem						
Dynabrade 13220 Dynastraight Finishing Tool Versatility Kit						
Dynabrade 52564 4-1/2"-5" (114 mm-127 mm) Dia. Right Angle Disc Sander						
Dynabrade 51106 Collet, 5/16"-24 Female Thread, 1/4" Capacity, 4-Piece Collet						
Dynabrade 51303 .5 hp Straight-Line Die Grinder, Front Exhaust, 24,000 RPM, 1/4" Collet						
Dynabrade 52580 4" (102 mm) Dia. Straight-Line 6" (152 mm) Extension Cut-Off Wheel Tool, Rear Exhaust, 1 HP, 18,000 RPM, 3/8"-24 Spindle						
Dynabrade 54343 .7 hp Right Angle Die Grinder, Rear Exhaust, 12,000 RPM, 1/4" Collet						
Dynabrade 79829 DynaBolt AO SS 7" x .045" x 7/8" T42 Right Angle						
Dynabrade 53531 Cone or Plug Grinder (Single Extension), 18,000 RPM, 3/8"-24 Male Thread Spindle						
Dynabrade 53134 Anti-Vibration Handle						
Dynabrade X52H 5" (127 mm) Dia. Non-Vacuum Dynorbital Extreme Random Orbital Sander, .3 HP, 12,000 RPM, 3/32" Orbit, Hook-Face						
Dynabrade 64672 Replacement Class I Non-Flammable Panel Filter Cartridge						
Dynabrade 01469 Speed Regulator						
3M™ 53797, Flexible Diamond Belt 6451J, 1/2" Dia x 18" L, M125 Micron, Type G, Pattern B2, 7010509272						
Dynabrade 58363 Valve Stem						
Dynabrade 52436 4-1/2" (114 mm) Dia. 7 Degree Offset Vacuum Cut-Off Wheel Tool						
Dynabrade 57895 Pad Base- Mini Dynabug						
Dynabrade 64880 Cutlery Grinder, 115 Volt Variable Speed						
Dynabrade 22070 Downdraft Table Accessory Pack (Air Manifold, FRL and On/Off Air Valve)						
Dynabrade 50282 5" Dia. Disc Backup Pad, Spiral-Face, Medium Density, 5/8"-11 Thread						
Dynabrade 57064 Speed Regulator						
Dynabrade 52579 4" (102 mm) Dia. Straight-Line 6" (152 mm) Extension Cut-Off Wheel Tool, Rear Exhaust, 1 HP, 15,000 RPM, 3/8"-24 Spindle						
Dynabrade 52430 4" (102 mm) Dia. 7 Degree Offset Cut-Off Wheel Tool, .7 HP, 15,000 RPM, 3/8"-24 Spindle						
Dynabrade 61496 Raptor Vac Series Compact Pneumatic Water Immersion Vac System, Division 1, w/ Hose						
Dynabrade 57765 - 6" (152 mm) Dia. Vacuum Gear-Driven Disc Pad, Hook-Face, Short Nap						
Dynabrade 51307 .5 hp Straight-Line Die Grinder, Rear Exhaust, 24,000 RPM, 1/4" Collet						
3M 24049, Wetordry Cloth Disc 281W, P1000 YF-weight, 8 in x NH, Die 800JM, 7000045052						
