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 27468, EMI Copper Foil Shielding Tape 1181, 1 in x 18 yd (25,40 mm x 16,5 m), 7000132169
3M 43474, Glass Cloth Tape 3615, White, 1 in x 36 yd, 7 mil, 7000048876
3M 80512, Roloc Disc 777F, TR, 2 in x NH, P120 YF-weight, 7000000553
3M 64264, Cubitron II Hookit Clean Sanding Film Disc 775L, 180+, 5 in, Die 500LG, 7100064177, 250 per case
Standard Abrasives 840458, Quick Change Buff and Blend HS Disc, Medium, TR, Blue, 3 in, Die Q300V, 7100074872, 25/case
3M 02115, Paper Sheet 346U, 80 D-weight, 9 in x 11 in, 7000120220
3M 17185, Scotch-Brite Roloc EXL Unitized Wheel TR, 2 in x NH 2A MED, 7100000860
3M 46902, No Residue Duct Tape 2420, 1.88 in x 20 yd (48 mm x 18.2 m), 7100270251
3M 96964, Cartridge Roll 341D, P240 X-weight, 1/4 in x 1 in x 1/8 in, 7100080019
3M 27710, Cubitron II Roloc Durable Edge Disc 984F, 60+, YF-weight, TR, Maroon, 3 in, Die R300V, 7000045172, 200 per case
3M 86802, Cubitron II Stikit Film Disc 775L, 80+, 5 in x NH, Linered w/Tab, Die 500X, 7100048736, 250 per case
3M 05531, Scotch-Brite Roloc Surface Conditioning Disc, 05531, SC-DR, A/O Medium, TR, 3 in, 7000000755, 100 per case
3M 05058, Cubitron II Hookit Clean Sanding Film Disc 775L, 400+, 5 in, Die 500LG, 7100145404, 250 per case
3M 27747, Scotch-Brite High Strength Disc, 6 in x 1/2 in, A VFN, 7000120987
3M 54256, Cubitron II Roloc Durable Edge Disc 947A, 80+, X-weight, TR, Maroon, 2 in, Die R200P, 7100076925, 200 per case
3M 14276 Scotch-Brite Surface Conditioning Belt, 1/4 in x 18 in, A MED, 7000120687
3M 97061, Cartridge Roll 341D, P240 X-weight, 1/2 in x 1-1/2 in x 1/8 in, 7010363830
Dynabrade 52705 3" (76 mm) Dia. Right Angle Depressed Center Wheel Grinder, .4 HP, 15,000 RPM, 3/8"-24 Spindle
3M 86992, Diamond Disc, 3" Roloc, 674W, 120 Mesh, TR, 7100143477, Box of 5
3M 29882, Sanding Screen, 220 Grit, 18 in x NH, 7100160813
Dynabrade X51H 5" (127 mm) Dia. Non-Vacuum Dynorbital Extreme Random Orbital Sander, .3 HP, 12,000 RPM, 3/16" Orbit, Hook-Face
3M 77558, Cubitron II Hookit Cloth Disc 947A, 77558, 40+ to 120+, 6 in x NH, Die 600Z, 7100232737
ACS Diamond Grinding Disc, 4-1/2" Dia. X 5/8"-11 Center Hub Thread, Type 29, 36 Grit
Insize 1136-301WL, WIRELESS DIGITAL CALIPER (jaw length 100mm), 0-300mm/0-12", 0.01mm/0.0005", 6940561960808
Dynabrade 13509 Dynastraight Finishing Tool, Rear Exhaust, 6,000 RPM, 5/8" (16 mm) or 1" (25 mm) Dia. Arbor
Standard Abrasives 710870, Cartridge Roll Mandrel, 1/8 in x 1/2 in x 1/4 in x 1-1/4 in x 2-1/4 in CM-7, 7000121794
3M 64660, Scotch-Brite Durable Flex Hand Pad, MX-HP, SiC Ultra Fine, 4-1/2 in x 9 in, 7100042335, 25/Carton
3M 05508, Marine Adhesive Sealant 4000 UV, White, 600 mL Sausage Pack, 7010330455, 12/Case
3M 62816, Adhesive Sealant 760 UV, White, 600 mL Sausage Pack, 7000046609, 12/Case
Dynabrade 95821 Dynabrade Air Lube 10W/NR, 4oz Bottle
Dynabrade 11475 Dynabelter Abrasive Belt Tool, Standard Duty
Dynabrade 11486 Dynabelter Accu-Grinder Abrasive Belt Tool, Heavy-Duty
3M 11412, Roloc Disc 361F, 36 YF-weight, TR, 1 in, Die R100N, 7000045092
3M 22405, Roloc Disc 361F, P100 YF-weight, TR, 3 in, Die R300V, 7000045102
3M 22407, Roloc Disc 361F, 80 YF-weight, TR, 1-1/2 in, Die R150S, 7000045099
3M 29860, Sanding Screen, 120 grit, 12 in x 18 in, 7100160860
3M 29840, Sanding Screen, 100 Grit, 17 in x NH, 7100160821
Air Turbine Tools 310RDM - 1/4" Router Hand Tool Series, 30,000RPM, 33432
3M 22392, Roloc Disc 361F, 24 YF-weight, TR, 3 in, Die R300V, 7000045090
Dynabrade 14360 Pneumatic Pipe Belt Finisher
3M 22396, Roloc Disc 361F, 36 YF-weight, TR, 1-1/2 in, Die R150S, 7000045091
Dynabrade 14010 Dynafile Abrasive Belt Tool Versatility Kit
3M 29844, Sanding Screen, 120 Grit, 16 in x NH, 7100160823
3M 08027, Marine Grade Silicone Sealant, White, 304 mL Cartridge, 7000120476, 12/Case
3M 45715, Cubitron II Hookit Cloth Disc 947A, 40+ X-weight, 5 in x NH, D/F 5HL, Die 500FH, 7100113110
3M 24049, Wetordry Cloth Disc 281W, P1000 YF-weight, 8 in x NH, Die 800JM, 7000045052
Dynabrade 11477 Dynabelter Abrasive Belt Tool, Heavy-Duty 
