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 11306 Idler Bearing Press Post
Dynabrade 94775 2" W x 72" L 60 Grit A/Z DynaCut Belt, 10/pack
Dynabrade 53435 Drill, .4 HP, Rear Exhaust, 3,200 RPM, 1/4"-28 Female Thread
Dynabrade 43516 .4 hp 6" (152 mm) Dia. Extension Die Grinder, Rear Exhaust, 25,000 RPM, 1/4" Collet
Dynabrade 80431 Filter Lock
Dynabrade 91730 DynaMesh 6" 240 Grit Hook & Loop Discs, 50 per box
Dynabrade 96209 Clamp Ring Assembly
Dynabrade 64354 26" x 36" (660 mm W x 914 mm L) Metal Capture Downdraft Station, 460 V (AC)
Dynabrade 90593 1-1/2" W x 30" L 180 Grit A/O DynaCut Belt, 50/pack
Dynabrade 54029 Sanding Head
Dynabrade 57951 2-7/8" W x 3-1/8" L Non-Vacuum Dynafine Triangular Disc Pad, Hook-Face, Short Nap
Dynabrade X61ESD 6" Dia. Central-Vacuum Dynorbital Extreme Random Orbital Sander for ESD
Dynabrade 53087 - 3/8" Drill Chuck, 3/8"-24 Female Thread
Dynabrade 11244 Contact Arm Ass'y, 5/8" Dia. x 3/8" W, Rubber Wheel, with 1/2" W Platen- 14" Reach
Dynabrade 96355 Phillips Screwdriver
Dynabrade 40737 Armature Assembly
Dynabrade 90200 2" W x 15-1/2" L 80 Grit A/Z DynaCut Belt, 50/pack
Dynabrade 93595 1/2" Dia. x 3-48 Female Center Thread, 150 Grit, A/O, 3-Ply, J-DynaCut Eyelet Star, 50/pack
Dynabrade 90258 3/4" W x 18" L Very Fine NWN DynaBrite Premium Belt, 10/pack
Dynabrade 61202 RaptorVac Pneumatic DrumVac Kit, Single Operator, General Purpose
Dynabrade 52742 Shroud
Dynabrade 79824 3" P2500 Grit Dynasoft Finishing Film Non Vac Hook Face Disc, 50 per box
Dynabrade 53531 Cone or Plug Grinder (Single Extension), 18,000 RPM, 3/8"-24 Male Thread Spindle
Dynabrade 13202 Dynastraight Finishing Tool, .7 HP, Rear Exhaust, 3,400 RPM, 5/8" Dia. Arbor
Dynabrade 01121 Shim (3/Pkg.)
Dynabrade 42733 Carbon Brush
Dynabrade 90231 1/4" W x 18" L Coarse NWN DynaBrite Premium Belt, 10/pack
Dynabrade 59075 Speed Regulator
Dynabrade 46001 .4 hp Right Angle Die Grinder, Rear Exhaust, 15,000 RPM, 1/4" Collet
Dynabrade 01899 Drop-In Motor
Dynabrade 79314 4-1/2" Dia. x 7/8" Center Hole, 80 Grit, A/O DynaCut Fiber Disc, 25/box
Dynabrade 61484 Vacuum Cart
Dynabrade 53686 Muffler Cap
Dynabrade 82466 5" Dia. x 80 Grit, A/O, Vacuum PSA Filmbac DynaCut Disc, 100/Pack
Dynabrade 79263 6" Dia. x 180 Grit A/O Vacuum PSA DynaCut Disc, 100/Roll
Dynabrade 91460 8" Dia. x 120 Grit A/O Vacuum Hook-Face DynaCut Disc, 25/Box
Standard Abrasives 730088, Ceramic Straight Cartridge Roll, 1/2 in x 1-1/2 in x 1/8 in 60, 7100092986
Dynabrade 52574 4" (102 mm) Dia. Straight-Line Cut-Off Wheel Tool, Rear Exhaust, 1 HP, 18,000 RPM, 3/8"-24 Spindle
Dynabrade 91638 2" W x 36" L 80 Grit A/O DynaCut Belt, 10/pack
Dynabrade 92916 2" Dia. x 1" W Slotted Wheel 
