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.

3M™ 72016, Remote Alarm & Strobe 529-05-20, Audible, 7000131708, 1 EA/Case
Dynabrade 78564 3" Dia. 2-Set, 1/4-20 Female Center Thread, 180 Grit, Dynacut A/O Overlap Slotted Disc, 100/pack
Dynabrade 15034 Contact Arm Assembly, 13" Mini-Dynafile II Offset
Dynabrade 79315 5" Dia. x 7/8" Center Hole, 36 Grit, A/O DynaCut Fiber Disc, 25/box
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 51306 .5 hp Straight-Line Die Grinder, Rear Exhaust, 20,000 RPM, 1/4" Collet
Dynabrade 79005 1/8" W x 12" L 120 Grit A/Z DynaCut Belt, 50/pack
Dynabrade 90613 3" W x 10-11/16" L 60 Grit A/O DynaCut Belt, 10/pack
Dynabrade 92027 2" Dia. x 60 Grit Ceramic DynaCut Locking-Type Disc, 2 Ply Cloth, 25/pack
Dynabrade 79183 1/8" W x 12" L 120 Grit Ceramic DynaCut Belts, 50/pack
Dynabrade 78556 2" Dia. 2-Set, 8-32 Female Center Thread, 180 Grit, Dynacut A/O Overlap Slotted Disc, 100/pack
Dynabrade 57956 4" W x 3/4" L Non-Vacuum Dynafine Raised Panel Disc Pad, Hook-Face, Short Nap
Dynabrade 51472 6"-8" Dia. Right Angle Two-Hand Rotary Buffer, .7 hp, 0-3,100 RPM, Rear Exhaust, 5/8"-11 Spindle Thread
Dynabrade 01044 Drop-In Motor
Dynabrade 78113 2" Dia. x 80 Grit Premium Ceramic Non-Vacuum DynaCut Locking-Type Disc, 25/pack
Dynabrade 53531 Cone or Plug Grinder (Single Extension), 18,000 RPM, 3/8"-24 Male Thread Spindle
Dynabrade 81012 2" W x 42" L 320 Grit A/O DynaCut Belt, 10/pack
Dynabrade 54343 .7 hp Right Angle Die Grinder, Rear Exhaust, 12,000 RPM, 1/4" Collet
Dynabrade 11328 Contact Wheel Assembly, 5/16" Dia. x 3/8" W x 3/16" I.D., Reduc
Dynabrade 56250 5" Dia. Vacuum Disc Pad, Hook-Face, Short Nap
Dynabrade 01036 Drop-In Motor
Dynabrade 78474 2-1/2" Dia. x 3/4", 8-32 Female Center Thread, A/O, 80 Grit, 8-Ply J-DynaCut Cross Pad, 100/pack
Dynabrade 67200 Utility Arm, 2" Dia. x 1", 70 Duro Serrated Urethane
Dynabrade 01888 Drop-In Motor
Dynabrade 97574 - 1/4" Safety Male Coupler w/Male Plug
Dynabrade 51303 .5 hp Straight-Line Die Grinder, Front Exhaust, 24,000 RPM, 1/4" Collet
Dynabrade 79122 1/2" W x 18" L 40 Grit DynaCut Premium Ceramic Belts, 50/pack
Dynabrade 90363 2" W x 34" L 60 Grit Z/A DynaCut Belt, 10/pack
Dynabrade 31919 - 20' Long D-Block Vac Hose Assembly
Dynabrade 51705 .1 hp Straight-Line Pencil Grinder, Rear Exhaust, 50,000 RPM, 3/32" Collet
Dynabrade 96101 Dynabrade Air Lube 10W/NR 24 Per Box
3M™ 07010, Supplied Air Respirator Hose W-9435-25/07010(AAD), 25 ft, 3/8 in ID, Industrial Interchange Fittings, High Pressure, 7000005374, 1 EA/Case
Dynabrade 52718 Cone or Plug Wheel Grinder, 20,000 RPM, 3/8"-24 Male Thread Spindle
Dynabrade 54470 Rotor Pinion
Dynabrade 52432 4" (102 mm) Dia. 7 Degree Offset Cut-Off Wheel Tool, Rear Exhaust, .7 HP, 15,000 RPM, 3/8"-24 Spindle
Dynabrade 79304 - 2-3/4" W X 45 L Yards, 180 Grit, A/O PSA Dynacut Roll
Dynabrade 58902 5" Dia. Compact Rebel Right Angle Depressed Center Wheel Grinder
Dynabrade 58501 3" W x 4-1/4" L Dynabug II Orbital Sander, Self-Generated Vacuum, .15 HP, 10,000 RPM, 3/32" Orbit
Dynabrade X51H 5" (127 mm) Dia. Non-Vacuum Dynorbital Extreme Random Orbital Sander, .3 HP, 12,000 RPM, 3/16" Orbit, Hook-Face
Dynabrade X3262V - 3" Mini Extreme & 6" Extreme Random Orbital Sander, Vac, Combo Kit 12,000 RPM, 3/32" Dia., Rear Exhaust
Dynabrade 51631 .1 hp Straight-Line Pencil Grinder, Central Vacuum, 50,000 RPM, 3mm Collet
Dynabrade 67213 Cutlery Arm, 4" Dia. x 2" W, 50 Duro Flat Rubber
Dynabrade 82550 1/2" W x 18" L 40 Grit Ceramic DynaCut Belt, 50/pack
Dynabrade 46002 .4 hp Right Angle Die Grinder, Rear Exhaust, 20,000 RPM, 1/4" Collet
Dynabrade 21692 NDDP1060, Pad Plate Grommet
Dynabrade 52851 Extension Pencil Grinder, Rear Exhaust, 60,000 RPM, 1/8" Collet
Dynabrade 51706 .1 hp Straight-Line Pencil Grinder, Rear Exhaust, 35,000 RPM, 1/8" Collet
3M 77559, Cubitron II Hookit Cloth Disc 784F, 77559, 36+ to 120+, 5 in x NH, Die 500X, 7100232738 
