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3M™ Fibre Disc 782C

32  Products
  • Rapidly cuts carbon steel
  • Premium mineral excels at heavyweight applications such as weld grinding, beveling, and edge chamfering
  • 3M Precision Shaped Grain yields higher cut rates while completing more parts per disc than conventional discs
  • Long-lasting abrasive helps reduce cost
 More...
Overall Diameter (Imperial)
Center Hole Diameter
Max RPM
Attachment Type
Equipment - Machines
32 Products Available
Available options:
 Overall Diameter (Imperial), Center Hole Diameter, Max RPM, Attachment Type, Equipment - Machines and Grit
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Specifications
Attribute Name
Value
Application
Beveling & Back Gouging, Deburring, Finishing, Grinding, Surface Preparation, Weld Grinding
Attachment Type
Center Hole, GL, TN
Backing Material
Fibre
Bonding Type
Resin
Brand
3M™
Center Hole Diameter
0.625 in, 0.875 in
Center Hole Diameter (Metric)
15.875 mm, 177.8 mm, 22.225 mm
Coat Type
Closed Coat
Color
Red, Maroon
Equipment - Machines
Right Angle Grinders
Form Type
Right Angle
For Use On
Aluminum, High Nickel Alloy, Stainless Steel, Titanium, Titanium/Zirconium, Zirconium
Grit
36+, 60+, 80+
Hole Configuration
450E, 500P, 700BB, 912J, TN450E, TN500P, TN700BB
Industries
Metalworking
Maximum Speed
12000, 13300, 6600, 8600
Max RPM
12000, 13300, 15300, 6600, 8600
Mineral Type
Precision Shaped Ceramic
Overall Diameter (Imperial)
4 in, 4.5 in, 5 in, 7 in, 9.125 in
Overall Diameter (Metric)
101.6 mm, 114.3 mm, 127 mm, 177.8 mm, 231.775 mm, 101.6 mm, 114.3 mm, 127 mm, 177.8 mm, 231.775 mm
Product Form
Disc
Product Series
782C
Sub Industries
Sub Applications
Substrate
Aluminum, High Nickel Alloy, Stainless Steel, Titanium/Zirconium
TDS Required
Yes
Product Details
  • Rapidly cuts carbon steel
  • Premium mineral excels at heavyweight applications such as weld grinding, beveling, and edge chamfering
  • 3M Precision Shaped Grain yields higher cut rates while completing more parts per disc than conventional discs
  • Long-lasting abrasive helps reduce cost
  • Stiff fiber backing and strong resin bond provide durability and tear-resistance
  • Compatible with 3M™ disc pad face plates and hubs (sold separately)

Engineered for ultra-rapid cut on carbon steel, 3M™ Fibre Disc 782C features 3M Precision Shaped Grain. With its outstanding cut, durability, and ease of use, this disc offers a major step up in performance over conventional fiber discs. Advanced abrasive technology makes it an excellent choice for tough applications including weld removal, blending and finish refinement.

3M™ Fibre Disc 782C
3M precision-shaped grain stays sharper longer
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 787C (PDF, 395 Kb) 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.

Developed for improved output on light to heavy stock removal, 3M Precision Shaped Grain lets operators finish tough tasks faster and with less fatigue.
Quick Change Tinneman Nut Attachment
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 (PDF, 5.1 Mb) 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.

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Large Volume Order

If you are considering a large purchase of this or other 3M Abrasive products our inside sales team is ready to help by providing additional information and options that our industrial customers typically seek when making abrasive procurement decisions. Our technical expertise, customer support, and global capabilities put us in a unique position to address your biggest challenges, and we’ll do our best to prove that we should be your abrasive supplier of choice.


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