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 57926 6" Dia. Dynabug "Model T" Orbital Sander, Non-Vacuum, 20,000 RPM, 3/32" Orbit, PSA
Dynabrade 52410 3" Dia. 7 Degree Offset Disc Sander, Front Exhaust, .7 HP, 15,000 RPM, 3/8"-24 Thread
Dynabrade 51706 .1 hp Straight-Line Pencil Grinder, Rear Exhaust, 35,000 RPM, 1/8" Collet
Dynabrade 59185 6" Self Gen Vac Ready Automotive Dynorbital Spirit Random Orbital Sander, 3/16" Orbit
Dynabrade 11682 Dynabelter Contact Arm Assembly, 4 Inch Dia x 1/2 Inch, 70 Durometer, Wheel Radiused
3M 36882, Self-Stick Liquid Protection Fabric, Blue, 56 in x 300 ft, 7100169350
Dynabrade 11475 Dynabelter Abrasive Belt Tool, Standard Duty
Dynabrade 52662 1 hp Straight-Line Die Grinder, Rear Exhaust, 3,400 RPM, 1/4" Collet
Dynabrade 51700 .1 hp Straight-Line Pencil Grinder, Rear Exhaust, 60,000 RPM, 1/8" Collet
Dynabrade X52VHS 5" Dia. Vacuum Dynorbital Extreme Random Orbital Sander, Hook Pad W/ Speed Regulator
Dynabrade 64861 Variable Speed Versatility Grinder, Slack-Action, 1 hp, 120 V (AC), 1 Phase, 50/60 Hz, 600-4,000 SFPM, for 1/4"-2" W x 72" L (6-51 mm x 122 cm) Belts
Dynabrade 82445 6" Dia. x 120 Grit A/O Hook Non-Vacuum Film-Backed DynaCut Disc, 100/Box
3M 22396, Roloc Disc 361F, 36 YF-weight, TR, 1-1/2 in, Die R150S, 7000045091
3M 26578, Accuspray ONE Pro Spray Gun Kit for PPS Series 2.0, 7100158715
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 58507 2-3/4" W x 7" L Dynabug II Orbital Sander, Non-Vacuum with Clips, .15 HP, 10,000 RPM, 3/32" Orbit
Dynabrade 52438 5" (127 mm) Dia. 7 Degree Offset Vacuum Cut-Off Wheel Tool
Dynabrade 69359 Muffler Body
Dynabrade 79035 3/4" W x 18" L 60 Grit A/Z DynaCut Belt, 50/pack
Dynabrade 58034 1-1/4" Dia. Right Angle Mini-Orbital Sander, 4K RPM, .4Hp, Rear Exhaust
Dynabrade 91746 DynaMesh 8" 500 Grit Hook & Loop Discs, 50 per box
3M™ 72013, Adapter 529-04-50, 110-120 VAC, 7000131705, 1 EA/Case
Dynabrade 58075 4" W x 4-1/2" L Dynabug "Model T" Orbital Sander, Self-Generated Vacuum, 20,000 RPM, 3/32" Orbit, Hook-Face
Dynabrade 53282 9" (180 mm) Dia. Right-Angle Grinder, 2.8 HP, 6,500 RPM, 5/8"-11 Spindle
Dynabrade 76016 Foam Pad
Dynabrade 59182 6" Dia. Dynorbital-Spirit Random Orbital Sander, Central Vacuum, 3/16" Orbit
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3M 22393, Roloc Disc 361F, 36 YF-weight, TR, 3 in, Die R300V, 7000045093
3M 71358, 641WY 1/4" X 24", 600 Mesh Diamond Cloth Belt, 7010534894
Dynabrade 54343 .7 hp Right Angle Die Grinder, Rear Exhaust, 12,000 RPM, 1/4" Collet
Dynabrade 93907 3" Dia. Side Spoked Diamond Mounted Cut-Off Wheel
Dynabrade 58504 3-1/4" W x 5" L Dynabug II Orbital Sander, Self-Generated Vacuum, .15 HP, 10,000 RPM, 3/32" Orbit
3M 29834, Sanding Screen, 100 Grit, 18 in x NH, 7100160819
3M™ 72016, Remote Alarm & Strobe 529-05-20, Audible, 7000131708, 1 EA/Case
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Dynabrade 79876 3" 1000 Grit Dynacut Extreme Orange Film Vac Hook Face Disc, 50 per box
Dynabrade 93344 Carbide Burr, 1/8" Dia., SF-42 D/C Burr, Tree, 1/2" Flute L, 1/8" Shank
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Dynabrade 18410 Safety Lever Spring
Dynabrade 50018 Collet, M8 x 1.0 Female Thread, 3/8" Capacity
Dynabrade 93350 Carbide Burr 8-Piece Burr Kit, 1/4" Shank
Dynabrade 18595 Rotor
Dynabrade 11286 Contact Arm Ass'y, 5/8" Dia. x 3/8" W, Rubber Wheel, with 1/2" W Platen
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Dynabrade 01564 Air Control Ring
Dynabrade 53532 Cone or Plug Grinder (Double Extension), 18,000 RPM, 3/8"-24 Male Thread Spindle
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Dynabrade 52418 3" (76 mm) Straight-Line Central Vacuum Flush Cut-Off Wheel Tool
Dynabrade 79183 1/8" W x 12" L 120 Grit Ceramic DynaCut Belts, 50/pack
Dynabrade 47201 .4 hp Straight-Line Die Grinder, Rear Exhaust, 3,200 RPM, 1/4" Collet
3M 05516, Polyurethane Glass Adhesive Sealant 590, Black, 310 mL Cartridge, 7100060280, 12/Case
Dynabrade 52434 3" (76 mm) Dia. Straight-Line Cut-Off Wheel Tool, Front Exhaust, .5 HP, 20,000 RPM, 3/8"-24 Spindle
Dynabrade 51151 7" Dia. Disc Backup Pad, Medium Density, 5/8"-11 Thread
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3M 22394, Roloc Disc 361F, 50 YF-weight, TR, 3 in, Die R300V, 7000045096
Dynabrade 49135 Angle Head Drill, Central Vacuum
Dynabrade 51306 .5 hp Straight-Line Die Grinder, Rear Exhaust, 20,000 RPM, 1/4" Collet
Dynabrade 57765 - 6" (152 mm) Dia. Vacuum Gear-Driven Disc Pad, Hook-Face, Short Nap
Dynabrade 78699 D9-6 Cartridge Roll Mandrel 1/8" Pilot Dia. x 1" Pilot Length, 1/4" Dia. Shank x 6" Shank Length
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Dynabrade 15034 Contact Arm Assembly, 13" Mini-Dynafile II Offset
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 51411 7 Degree Offset Mini-Dynorbital Random Orbital Sander
Dynabrade 52718 Cone or Plug Wheel Grinder, 20,000 RPM, 3/8"-24 Male Thread Spindle
Dynabrade 11677 Dynabelter Contact Arm Assembly,4 Inch Dia x 1 Inch W, 40 Durometer, Plain Face
Dynabrade 58039 1-1/4" Dia. Right Angle Mini-Orbital Sander, 12K RPM, .4 HP, Rear Exhaust
Dynabrade 62346 Interface Ring
3M 22397, Roloc Disc 361F, 60 YF-weight, TR, 1-1/2 in x NH, 7000045097 
