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 33349, 641WY 1/4" X 24", 220 Mesh Diamond Cloth Belt, 7010534919
ACS-CP Curved Edge Flap Disc, 4-1/2" Dia. X 5/8"-11 Center Thread, 60 Grit
3M 87449 Silver Depressed Center Grinding Wheel, T27 Quick Change, 9 in x 1/4 in x 5/8-11 Center Hub Thread, 7010409732, 20 per case
3M 28764, Cubitron II Cut and Grind Wheel, Type 27 Quick Change, 6 in x 1/8 in x 5/8"-11, 7100019069, 20 per case
3M™ 17379, Versaflo™ Length Adjusting Breathing Tube BT-30, 7100009685, 1 EA/Case
Dynabrade 10690 Filter/Regulator/Lubricator, FRL40, 1/2" NPTAssy.
3M 27709, Cubitron II Roloc Durable Edge Disc 984F, 60+, YF-weight, TR, Maroon, 2 in, Die R200P, 7100001475, 200 per case
3M 05531, Scotch-Brite Roloc Surface Conditioning Disc, 05531, SC-DR, A/O Medium, TR, 3 in, 7000000755, 100 per case
Dynabrade 95843 Dynabrade Air Lube 10W/NR, 1 Gallon
3M 26127, PPS Series 2.0 Adapter, Type S31, 1/8 Male, 28 Thread BSP, 7100135953
3M 22408, Roloc Disc 361F, P100 YF-weight, TR, 1-1/2 in, Die R150S, 7000045101
Dynabrade 40610 Electric Dynafile II Abrasive Belt Tool
Norton 66623303912 - 2" Dia. XCS Grit Aluminum Oxide Type III, Bear-Tex Non-Woven Quick-Change Disc, 25 Each
3M 33780, 641WY 1/4" X 24", 400 Mesh Diamond Cloth Belt, 7010534915
3M™ 17323, Versaflo™ Respiratory Helmet Assembly M-407, with Premium Visor and Flame Resistant Shroud, 7000002395, 1 EA/Case
3M™ 72016, Remote Alarm & Strobe 529-05-20, Audible, 7000131708, 1 EA/Case
Insize 7260-150, SPRING DIVIDER, 6", 6928640319709
Dynabrade 56106 5" Dia. Non-Vacuum Disc Pad, Vinyl-Face
Dynabrade 96558 Raptor Vac Cleaning Kit, w/ 6ft. Hose
Dynabrade 50267 4-1/2" Dia. Disc Backing Pad, 5/8"-11 Thread
Dynabrade 15420 Dynafile III Abrasive Belt Tool
Dynabrade 57101 5" Dia. Low Profile Random Orbital Sander
Dynabrade 51742 .1 hp Straight-Line Pencil Grinder, 60,000 RPM, 3mm Collet, w/ Mounted Stem
Dynabrade NS11V 11" Dia. Random Orbital Sander, Vacuum
Dynabrade 15025 Contact Arm Assembly, 3/8" Dia. x 1" W, 40 Durometer
Dynabrade 52638 4-1/2" (114 mm) Dia. Right Angle Depressed Center Wheel Grinder
Dynabrade 52855 .1 hp Straight-Line Variable Speed Pencil Grinder, 35-60,000 RPM, 3mm Collet
Dynabrade 95975 Shim Pak
3M™ 94275, Versaflo™ Gold Coated Tinted Over-Visor with UV/IR Protection M-967N, 70071696879, 1 EA/Case
Dynabrade 62415 HEPA Filter/Exhaust
Dynabrade 93245 8" Dia. x 1/2" Center Hole, 120 Grit, A/O, Arbor-Mount Sanding Star
Dynabrade 57763 - 6" (152 mm) Dia. Vacuum Gear-Driven Disc Pad, Vinyl-Face
Dynabrade 62347 Interface Ring
Dynabrade 90707 5" Dia. x 3" W, 36 Grit, Z/A DynaCut Band, 10/pack
Dynabrade 95842 Dynabrade Air Lube 10W/NR, 1 Pint
Dynabrade 15029 Contact Arm Ass'y, 1" Dia. x 3/8" W, Tapered Rubber Wheel, No Platen/Offset Design
Dynabrade 56829S - 6" (152 mm) Dia. Self-Generated Vacuum Dynorbital Supreme Random Orbital Sander
Dynabrade 79106 1/4" W x 12" L 80 Grit DynaCut Premium Ceramic Belt, 50/pack
Dynabrade 91745 DynaMesh 8" 400 Grit Hook & Loop Discs, 50 per box
Dynabrade 11287 Contact Arm Ass'y, 3/4" Dia. x 5/8" W, Rubber Wheel, with 3/4" Platen
Dynabrade 79033 1/2" W x 18" L 120 Grit A/Z DynaCut Belt, 50/pack
Dynabrade 52518 4-1/2" (114 mm) Dia. Right Angle Disc Sander
Dynabrade 58509 3" W x 4-1/4" L Dynabug II Orbital Sander, Non-Vacuum, .15 HP, 10,000 RPM, 3/32" Orbit
Dynabrade 57800 3-2/3" W x 7" L Dynabug Orbital Sander, Non-Vacuum, .24 HP, 8,000 RPM, 3/16" Orbit
Dynabrade 96234 Motor Tune-Up Kit
3M 76783, Cubitron II Hookit Cloth Disc 784F, 120+ XF-weight, 5 in x NH, Die 500X, 7100222757 
