3M™ Roloc™ Fibre Disc 782C, 36+, TR, 4 in, Die R400BB, 25/Carton, 100 ea/Case

Engineered for ultra-rapid cut on carbon steel, 3M™ Roloc™ 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.
Special Price $3.61 Regular Price $4.25
UPC 00076308896676
3M ID 7100100975
Packaging Carton
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Premium Performance Tackles Carbon Steel Applications

Balance cost and output by selecting the abrasive with precisely the right amount of cut and life. 3M™ Roloc™ 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 the 782C Fibre Disc make it one of 3M's best grinding discs for high production environments, providing significant gains over conventional fiber discs. When a higher-tier fiber disc may be under-utilized but productivity is still your bottom line, the 782C Fibre Disc delivers outstanding throughput. This fiber disc is an excellent choice for many applications such as:

Edge chamfering Beveling

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, this disc is offered in a range of sizes and a variety of attachment styles. The 3M™ Roloc™ Fibre Disc 782C is available in 2-4" diameters for use with the following Roloc attachment systems: TR and TSP. Please select discs with the attachment design made for your system. 3M™ Fibre Disc 782C is also available in larger sizes with a center hole and with 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 they offer a complete line of high quality metalworking abrasive solutions to meet your tough jobs. The 3M™ Roloc™ 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.


  • 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
  • 3M™ Roloc™ attachment locks disc securely into place, no tools required
More Information
3M ID 7100100975
Keywords Grinding disc, 3m fibre disc, 3m disc, 3m fibre grinding disc, 3m abrasive, 3m abrasive disc
Global Product Hierarchy Abrasives > Abrasive Discs > Quick Change Discs
Abrasive Material Precision Shaped Ceramic
Application Grinding
Backing Material Fibre
Backing Thickness (Imperial) 0.0 NP
Backing Weight Non Pertinent
Bond Type Resin
Center Hole Diameter (Imperial) 0.0 NP
Center Hole Thread Size Non Pertinent
Center Hole Diameter (Metric) 0.0 NP
Color Family Red
For Use On Aluminum
Grit 36+
Product Number 782C
Product Type simple
Quantity 0
Trademark 1 3M™
Trademark 2 Roloc™
Country of Origin United States
Sales Unit EA
SAP Shelf Life In Days 1825
Base - Billing Unit EA
Base - Customary Width Dimension 4.0 INCH
Base - Metric Gross Weight 19.377 G
Base - Metric Width Dimension 0.101 M
Base - Item Quantity 1
Base - Unit EA
Unit of Use - Billing Unit EA
Unit of Use - Customary Cubic Dimension 10.009602696370747 ci
Unit of Use - Customary Gross Weight 0.04271897254356373 lbs
Unit of Use - Customary Net Weight 0.029998300015496294 lbs
Unit of Use - Metric Cubic Dimension 164.028 CCM
Unit of Use - Metric Net Weight 13.607 G
Unit of Use - Item Quantity 1
Unit of Use - Total Unit Quantity 1
Unit of Use - Previous Packaging Level Quantity 1
Unit of Use - Item Unit EACH
Unit of Use - Unit EA
Inner - Billing Unit EA
Inner - Customary Cubic Dimension 196.62497199010147 ci
Inner - Customary Gross Weight 0.9229983299763177 lbs
Inner - Customary Net Weight 0.7499575003874073 lbs
Inner - Customary Height Dimension 6.5 in
Inner - Customary Length Dimension 5.5 in
Inner - Customary Width Dimension 5.5 in
Inner - Metric Cubic Dimension 3222.106 CCM
Inner - Metric Net Weight 340.175 G
Inner - Metric Height Dimension 16.51 CM
Inner - Metric Length Dimension 13.97 CM
Inner - Metric Width Dimension 13.97 CM
Inner - Item Quantity 25
Inner - Total Unit Quantity 25
Inner - Previous Packaging Level Quantity 25
Inner - Item Unit EACH
Inner - Previous Packaging Level Unit EACH
Inner - Unit KAR
Shipper - Billing Unit EA
Shipper - Customary Cubic Dimension 1000.9608798745156 ci
Shipper - Customary Gross Weight 4.271998666996978 lbs
Shipper - Customary Net Weight 2.999830001549629 lbs
Shipper - Customary Height Dimension 6.2 in
Shipper - Customary Length Dimension 13.589763779527559 in
Shipper - Customary Width Dimension 11.87992125984252 in
Shipper - Metric Cubic Dimension 16402.81 CCM
Shipper - Metric Weight 1937.746 G
Shipper - Metric Net Weight 1360.7 G
Shipper - Metric Height Dimension 15.748 CM
Shipper - Metric Length Dimension 34.518 CM
Shipper - Metric Width Dimension 30.175 CM
Shipper - Item Quantity 100
Shipper - Total Unit Quantity 100
Shipper - Previous Packaging Level Quantity 4
Shipper - Previous Packaging Level Unit CTNS
Shipper - Item Unit EACH
Shipper - Unit CS
Pallet - Billing Unit EA
Pallet - Customary Cubic Dimension 85067.0992680568 ci
Pallet - Customary Gross Weight 343.921129008409 lbs
Pallet - Customary Net Weight 215.98687826252456 lbs
Pallet - Customary Height Dimension 42.2 in
Pallet - Customary Length Dimension 48.0 in
Pallet - Customary Width Dimension 42.0 in
Pallet - Metric Cubic Dimension 1.394 M3
Pallet - Metric Net Weight 97.97 KG
Pallet - Metric Height Dimension 107.188 CM
Pallet - Metric Length Dimension 121.92 CM
Pallet - Metric Width Dimension 106.68 CM
Pallet - Item Quantity 7200
Pallet - Total Unit Quantity 7200
Pallet - Previous Packaging Level Quantity 72
Pallet - Previous Packaging Level Unit BOX
Pallet - Item Unit EACH
Pallet - Unit PAL
Pallet - Pallet Layer Quantity 6
Pallet - Shipping Container Per Layer Quantity 12
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