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 11486 Dynabelter Accu-Grinder Abrasive Belt Tool, Heavy-Duty
Dynabrade 52221 .5 hp 7 Degree Offset Die Grinder, Rear Exhaust, Short Shank, 18,000 RPM, 1/4" Collet
Dynabrade 58365 Tip Valve
Dynabrade 69540 3" (76 mm) Dia. Palm-Style Random/Rotary Orbit Sander/Buffer
Dynabrade 11214 Contact Arm Ass'y, 7/16" Dia. x 3/8" W, Rubber Wheel, with 1/2" W Platen
Dynabrade 05035 Housing for 05028 Motor
Dynabrade 01295 Housing
3M 22405, Roloc Disc 361F, P100 YF-weight, TR, 3 in, Die R300V, 7000045102
Dynabrade 52101 .5 hp Straight-Line Die Grinder, Rear Exhaust, 3,400 RPM, 1/4" Collet
Dynabrade 11312 Contact Arm Ass'y, 5/8" Dia. x 3/8" W, Rubber Wheel, H.D. Version of 11203 Arm
Dynabrade 07167 Throttle Valve Assy.
Dynabrade 14300 Dynangle II Abrasive Belt Tool, Single Motor
Dynabrade 51705 .1 hp Straight-Line Pencil Grinder, Rear Exhaust, 50,000 RPM, 3/32" Collet
Dynabrade 11605 1" W x 7" L Hard Platen Pad 5-Pkg.
3M 29611, 641WY 1/4" X 24", 100 Mesh Diamond Cloth Belt, 7010534832
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Dynabrade 52257 .7 hp Straight-Line Die Grinder, Front Exhaust, 18,000 RPM, 1/4" Collet
Dynabrade 63600 RaptorVac PowerHead Replacement for 61200
3M 22393, Roloc Disc 361F, 36 YF-weight, TR, 3 in, Die R300V, 7000045093
3M™ 72013, Adapter 529-04-50, 110-120 VAC, 7000131705, 1 EA/Case
Dynabrade 53077 1/4" Straight-Line Drill, .4 HP, Rear Exhaust, 950 RPM
Dynabrade 48355 .4 hp Straight-Line Die Grinder, Rear Exhaust, 35,000 RPM, 1/4" Collet
Dynabrade 01477 Valve Stem
Dynabrade 58034 1-1/4" Dia. Right Angle Mini-Orbital Sander, 4K RPM, .4Hp, Rear Exhaust
Dynabrade 51706 .1 hp Straight-Line Pencil Grinder, Rear Exhaust, 35,000 RPM, 1/8" Collet
Dynabrade 95426 Spring
Dynabrade 55242 Vane Set (4pk)
Dynabrade 61200 RaptorVac Electric DrumVac Kit, Single Operator, General Purpose
Dynabrade 58039 1-1/4" Dia. Right Angle Mini-Orbital Sander, 12K RPM, .4 HP, Rear Exhaust
Dynabrade 51923 Rear Bearing Plate
Dynabrade 48341 .4 hp Straight-Line Die Grinder, Rear Exhaust, 30,000 RPM, 1/8" Collet w/Overhose
Dynabrade 52635 5" Dia. Right Angle Disc Sander, Rotational Exhaust, 1.3 HP, 12,000 RPM, 5/8"-11 Thread
Dynabrade 51392 6"-8" Dia. Right Angle Two-Hand Rotary Buffer, 1 hp, 2,800 RPM, Rear Exhaust, 5/8"-11 Thread
Dynabrade 52861 .4 hp Straight-Line Pencil Grinder, Rear Exhaust, 25,000 RPM, 1/8" Collet
Dynabrade 01479 Rotor Spacer
Dynabrade 79837 3" 1200 Grit Dynacut Extreme Orange Film Non Vac Hook Face Disc, 50 per box
Dynabrade 21832 ND4191, Backing Pad
Dynabrade 11287 Contact Arm Ass'y, 3/4" Dia. x 5/8" W, Rubber Wheel, with 3/4" Platen
Dynabrade 52590 2" Dia. Right Angle Disc Sander, Rear Exhaust, .33 HP, 18,000 RPM, 3/8"-24 Thread
3M 29858, Sanding Screen, 80 grit, 12 in x 18 in, 7100161088
Dynabrade 51756 .1 hp Straight-Line Extension Pencil Grinder, Rear Exhaust, 35,000 RPM, 1/8" Collet
Dynabrade 90027 3" Dia. Polishing Pad, Terry Cloth
3M 11137, Roloc Disc 361F, 50 YF-weight, TR, 1-1/2 in, Die R150S, 7000045094 
