Premium Performance Tackles Carbon Steel Applications
Balance cost and output by selecting the abrasive with precisely the right amount of cut and life, no more and no less. 3M™ Fibre Disc 782C contains Precision Shaped Grain (PSG) to optimize the balance of speed and longevity for many of your carbon steel operations. Disc construction includes a stiff fiber backing and strong resin bond that provide durability and tear-resistance, which along with fast-cutting abrasive grain enables operators to complete more parts per disc and requires fewer disc changes.
The exceptional life and cut of our 782C 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 782C 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. Because the grain wears evenly and stays sharp, 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.
Attachment Styles
To suit many different project needs, we offer these discs in a range of sizes and a variety of attachment styles. We offer 7/8″ center hole (CH) discs that require the use of a 3M disc pad face plate and 3M hub. This ensemble is attached to a right angle grinder with a disc retainer nut (all sold separately). Also available are GL and TN style discs with convenient built-in fasteners to provide reliable attachment to the tool and easy disc changes between applications. Smaller sized discs with quick change attachments are sold separately as 3M™ Roloc™ Fibre Disc 782C.
Tips for Optimal Use
Fiber discs are heavy-duty abrasives that feature a tough, stiff backing made from vulcanized fiber that resist wear and can handle tough grinding applications. For optimal performance, the disc should be used with a face plate of the appropriate density for the application—a lighter density face plate for lighter weight grinding applications, and a harder density face plate for more heavyweight grinding applications. Using the correct face plate 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™ Fibre Disc 782C 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.

ACS Diamond Cloth Belt, CX1250 3/4" X 18" 250U
3M 50010, VentureClad Insulation Jacketing Tape 1577CW-WME, White, 99 mm x 13.7 m, 7010379907
ACS CX1250 Diamond Belts, 1/2" X 24" 200u
Dynabrade 14000 Dynafile Abrasive Belt Tool
3M 22392, Roloc Disc 361F, 24 YF-weight, TR, 3 in, Die R300V, 7000045090
3M 35519, Rubber Sanding Block, 2-3/4 in x 5 in, 7000126109
Dynabrade 93381 Carbide Burr 12-Piece Burr Kit, 3mm Shank
Dynabrade 51812 .1 hp Straight-Line Pencil Grinder, Rear Exhaust, 1000,000 RPM, 3/32" Collet
3M 14063, Scotch-Brite EXL Unitized Wheel, XL-UW, 6A Medium, 1 in x 1 in x 3/16 in, 7100001140
3M 66634, Cloth Belt 341D, 80 X-weight, 6 in x 48 in, Film-lok, Single-flex, 7000118866, 20 per case
Insize VSP-201H, RIGID CABLE, cable length 9.84", 6940561941319
3M 65082, Scotch Brite Roloc Deburr & Finish PRO Unitized Wheel, DP-UR, 6C Medium+, TR, 2 in x 1/4 in x NH, 7100081367
3M 26018, PPS Series 2.0 Adapter, Type S11, 3/8 Male, 18 Thread NPS, 7100135942
3M 05740, Hookit Hand Block, 2-3/4 in x 5 in, 7000045715
3M 15529, Scotch-Brite EXL Unitized Wheel, XL-UW, 2A Medium, 2 in x 1/4 in x 1/4 in, 7000120740
3M 05135, Scotch-Brite EXL Deburring Wheel, XL-WL, 9S Fine, 8 in x 1 in x 3 in, 7000000738
3M 27760, Hookit Microfinishing Film Disc 366L, 30 Mic 3MIL, Type D, 6 in x NH, Die 600Z, 7100049207, 500 per case
Standard Abrasives 890194, S/C Unitized Wheel, 632, 12 in x 1/4 in x 1-1/4 in, 7010367081
3M 65033, Scotch-Brite Diamond Wheel, 645DC 6 in x 1/2 in x 1 in, 7010365574, Box of 3
3M 16205, PPS Disposable Lids, Midi, 125 Micron Full Diameter Filters, 7000120049
3M 97419, Aluminum Foil Tape 3380, Silver, 48 mm x 45 m, 3.25 mil, 7000049613
3M 10116, Synthetic Steel Wool Pads, 10116NA, #2 Medium, 2 in x 4 in, 7000047708
Dynabrade 55501 .1hp Pencil Grinder, Twin Turbine, 100,000 RPM, Nickel-Plated Aluminum Housing, 3mm Collet
Dynabrade 07109 Vane Set (5pk)
3M 49689, PSA Cloth Disc 348D, 60 X-weight, 10 in x NH, Die 1000C, 7010326501
3M 03716, Scotch-Brite Cut and Polish Unitized Wheel, CP-UW, 7A Coarse, 2 in x 1/4 in x 1/4 in, 7100063702
3M 06535, Marine Adhesive Sealant 5200FC Fast Cure, PN06535, White, 1 oz Tube, 7010367674, 12/Case
Standard Abrasives 880513, Buff and Blend GP Wheel, 3 in x 1 Ply x 1/4 in A VFN, 7100094749
3M 53034, 663FC, 3/4" X 90", 20u, Diamond Trizact Belt 7100205969
Dynabrade 96101 Dynabrade Air Lube 10W/NR 24 Per Box
Dynabrade 93351 Carbide Burr 12-Piece Burr Kit, 1/8" Shank
3M 13172, Scotch-Brite Multi-Finishing Wheel, MU-WL, 2S Fine, 6 in x 1 in x 1 in, 7000136471
3M 22405, Roloc Disc 361F, P100 YF-weight, TR, 3 in, Die R300V, 7000045102
3M 03647, Scotch-Brite Edger Disc Pad, 7 in x .875 in, 7000133920
Standard Abrasives 880616, Buff and Blend GP Wheel, 4 in x 3 Ply x 1/4 in A MED, 7100095574
Dynabrade 18426 Vane Set (4pk)
Dynabrade 51623 .1 hp Straight-Line Extension Pencil Grinder, Central Vacuum, 1/8" Collet
3M 49688, PSA Cloth Disc 348D, 80 X-weight, 10 in x NH, Die 1000C, 7000118869
3M 11419, Roloc Disc 361F, P240 XF-weight, TR, 2 in, Die R200P, 7000045105
3M 35083, EMI Copper Foil Shielding Tape 1181, 1/4 in x 18 yd (6,35 mm x 16,5 m), 7000132168
Standard Abrasives 711444, A/O Straight Cartridge Roll, 1/4 in x 1 in x 1/8 in 180, 7100080017
3M 76783, Cubitron II Hookit Cloth Disc 784F, 120+ XF-weight, 5 in x NH, Die 500X, 7100222757
3M 11411, Roloc Disc 361F, 50 YF-weight, TR, 1 in, Die R100N, 7000045095 
