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.

3M 22408, Roloc Disc 361F, P100 YF-weight, TR, 1-1/2 in, Die R150S, 7000045101
3M 11414, Roloc Disc 361F, P120 XF-weight, TR, 1 in, Die R100N, 7000045104
Norton 66261014792 - 2" Medium Grade Aluminum Oxide Bear-Tex Speed-Lok High Strength Maroon TR Non-Woven Abrasive Disc 160 Each
3M 77558, Cubitron II Hookit Cloth Disc 947A, 77558, 40+ to 120+, 6 in x NH, Die 600Z, 7100232737
3M 45714, Cubitron II Hookit Cloth Disc 947A, 120+ X-weight, 3 in x NH, D/F 3HL, Die 300BE, 7100113113
ACS Diamond Cloth Belt, CX1250 3" X 90" 20U
3M™ 94275, Versaflo™ Gold Coated Tinted Over-Visor with UV/IR Protection M-967N, 70071696879, 1 EA/Case
Dynabrade 79440 4" Dia. x 5/8" Center Hole, 60 Grit, Type 29, Ceramic DynaCut Flap Disc, 10/pack
ACS Flap Disc, Type 29 (Curved) Full Diamond 4-1/2 X 5/8-11 60M, 333.FD4.5-60/T29
Insize 0130-L110, LIGHT METER (BASIC TYPE), 6974029776564
3M 01875, Charge-Collection Solar Tape 3011, 2 mm x 1200 m, 7010312686
3M 21543, Scotch-Brite Roloc Clean and Strip XT Pro Extra Cut Disc, TR, 2 in x NH, A XCS, 7100179815, 60/box
Dynabrade 14360 Pneumatic Pipe Belt Finisher
3M 97421, Aluminum Foil Tape 3380, Silver, 72 mm x 45 m, 3.25 mil, 7010375681
Dynabrade 77761 4-1/2" Dia. x 7/8" Center Hole, 36 Grit, Type 27, Ceramic DynaCut Flap Disc, 10/pack
Dynabrade 95843 Dynabrade Air Lube 10W/NR, 1 Gallon
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
Air Turbine Tools 310RSV - 1/4" Router Hand Tool Series, 25,000RPM, 33420
3M 35124, Grippy Sanding Cloth Trial Kit, 7100230957
Dynabrade 40320 Dynafile II Abrasive Belt Tool
Dynabrade 14010 Dynafile Abrasive Belt Tool Versatility Kit
3M 07056, Drywall Sanding Sponge CP-042, Single Angle, 2-7/8 in x 4-7/8 in x 1 in, Fine, 7100101555
3M 26620, Accuspray Atomizing Head Refill Pack for 3M PPS Series 2.0,Red, 2.0 mm, 7100141414 (4 Nozzles/Kit)
Dynabrade 92585 3-1/2" Dia. x Medium Hook-Face Surface Conditioning DynaBrite Disc, 10/pack
3M 06536, Scotch Steel Gray Masking Paper, 06536, 36 in x 1000 ft, 1 per case, 7000045443
Dynabrade 98265 3/8" Female Coupler with 3/8" Male Plug Assembly
Dynabrade 95821 Dynabrade Air Lube 10W/NR, 4oz Bottle
3M 25124, Scotch-Weld Threadlocker TL42, Blue, 1 L Bottle, 7010310189, 1/case
3M 01328, PSA Cloth Disc 348D, P180 X-weight, 3 in x NH, Die 300V, 7000045068
3M™ 72016, Remote Alarm & Strobe 529-05-20, Audible, 7000131708, 1 EA/Case
3M 34425, General Purpose Sanding Sponge CP041-3PK, Single Angle, 2-7/8 in x 4-7/8 in x 1 in, Medium, 7100175218, 3/pack
Dynabrade 77770 5" Dia. x 7/8" Center Holes, 120 Grit, Z/A, Type 27, DynaCut Flap Disc w/Fiberglass, 10/pack
Dynabrade 15003 Mini-Dynafile II Abrasive Belt Tool
3M 19769, Utility Cloth Sheet 314D, 9 in x 11 in P150 J-weight, 7000000357
3M 24049, Wetordry Cloth Disc 281W, P1000 YF-weight, 8 in x NH, Die 800JM, 7000045052
Dynabrade 02084 Angle Housing Assembly,Steel, Rear Exhaust
3M 11137, Roloc Disc 361F, 50 YF-weight, TR, 1-1/2 in, Die R150S, 7000045094
3M 26120, PPS Series 2.0 Adapter, Type S28, 17.5 mm Female, 19 TPI
Thread, 7100135956
3M 35083, EMI Copper Foil Shielding Tape 1181, 1/4 in x 18 yd (6,35 mm x 16,5 m), 7000132168
3M 70995, Scotch-Weld Acrylic Adhesive DP8410NS, Green, 490 mL Duo-Pak, 7100024045,6/case
3M 82561, Hot Melt Adhesive 3747 Q, Tan, 5/8 in x 8 in, 7000000877, 11 LBS/Case
3M 81356, Venture Tape White Aluminum Foil Tape 1558HT, 72 mm a 45.7 m, 5.4 mil, 7010335933
3M 30419, Cloth Belt 340D, 37 in x 75 in P180 X-weight, SINE, 7010361976, 5 per case
Dynabrade 11486 Dynabelter Accu-Grinder Abrasive Belt Tool, Heavy-Duty
3M 10115, Synthetic Steel Wool Pads, #3 Coarse, 7000051986
3M 26054, PPS Series 2.0 Adapter, Type S18, 3/8 Female, 18 Thread NPS,
4 per case
Dynabrade 11476 Dynabelter Abrasive Belt Tool, Heavy-Duty
3M 02405, Utility Cloth Sheet 211K, 9 in x 11 in 220 J-weight, 7010299775
3M 10120, Synthetic Steel Wool Pads, 10120NA, #000 Extra Fine, 7000126149
Dynabrade 51708 .1 hp Straight-Line Pencil Grinder, 35,000 RPM, 3/32" Collet
Dynabrade 79173 2" W x 30" L 60 Grit Ceramic DynaCut Belt, 10/pack
3M 17319, Versaflo Replacement Head Suspension M-350, for use with M-300 and M-400 Hardhats, 7000127679, 1 EA/Case
Standard Abrasives 726057, A/O R6 Taper Precision Cartridge Roll, 3/8 in x 1-3/4 in x 1/4 in 60, 7100098752
Standard Abrasives 726072, A/O C2 Straight Precision Cartridge Roll, 5/8 in x 2-1/2 in x 1/4 in 120, 7100098781
3M 26582, Accuspray Refill Pack for PPS Series 2.0, Blue, 1.2 mm, 7100152952
Dynabrade 15006 Mini-Dynafile II Abrasive Belt Tool Versatility Kit
3M 53619, High Performance Flatback Tape 2519, Tan, 72 mm x 110 m, 12 Rolls/Case, 7100246870
3M 65055, Scotch-Brite Heavy Duty Hand Pad 7440, HP-HP, A/O Medium, 6 in x 9 in, 7100080459, 40/Case
3M 19772, Utility Cloth Sheet 314D, 9 in x 11 in P80 J-weight, 7000000359
Standard Abrasives 701149, PSA A/O Disc, 1 in x NH, 240, 7010370103
Standard Abrasives 703989, A/O Full Taper Cartridge Roll, 3/4 in x 1-1/2 in x 3/16 in 80, 7100093005
3M 22392, Roloc Disc 361F, 24 YF-weight, TR, 3 in, Die R300V, 7000045090 
