3M Fibre Disc 787C, 60+, 4-1/2 in x 7/8 in, Die 450E, 25/Bag, 100 ea/Case

• 3M Precision Shaped Grain yields higher cut rates and cooler cut while completing more parts per disc than conventional fibre discs
• Compatible with 3M disc pad face plates and hubs (sold separately)
• Grinding aid minimizes grinding temperatures for heat-sensitive alloys
• Long-lasting disc helps reduce cost
• Premium mineral excels at heavyweight applications such as weld grinding, beveling, and edge chamfering
• Rapidly cuts hard to grind metals like stainless steel and high nickel alloys
• Stiff fiber backing and strong resin bond provide durability and tear-resistance

Engineered for ultra-rapid cut, 3M Fibre Disc 787C features 3M Precision Shaped Grain. With its outstanding cut, durability, and ease of use, this disc offers a step up in performance over conventional fiber discs. Constructed with a grinding aid, it is an excellent choice for weld removal, blending, and finish refinement on stainless steel and high nickel alloys.

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™ 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 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.

Choice of Power Tool Attachment
To suit many different project needs, we offer these discs in a range of sizes and a variety of attachment styles. Larger sized discs have a 7/8 inch center hole and require the use of a 3M™ disc pad face plate and hub, which are attached to a right angle grinder with a disc retainer nut (all sold separately). GL and TN quick change attachments are an option for 4-1/2 inch to 7 inch discs. Smaller sized quick change Roloc™ Discs are also available (sold separately) and provide reliable attachment to the tool and easy disc changes between applications.

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 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.

Trusted 3M Fibre Disc

The 3M Fibre Disc 787C offers reliable performance with its 60+ grade, designed for demanding grinding tasks. This model stands out by combining 3M's precision shaped grain technology with a durable fibre backing to deliver consistent results.

Ideal for industrial use, the 787C disc is engineered to handle tough materials while maintaining a cooler cut. Its design helps operators complete more parts per disc, making it a cost-effective choice for production environments.

Optimized Size And Format

This fibre disc measures 4-1/2 inches in diameter with a 7/8 inch arbor hole, fitting standard right angle grinders with appropriate disc pad face plates and hubs. The size and format make it versatile for various grinding and finishing applications.

The disc comes in a pack of 25, with 100 discs per case, ensuring a steady supply for continuous work. Its format supports quick changes and compatibility with 3M disc pad accessories sold separately.

Precision Shaped Grain Advantage

Featuring 3M Precision Shaped Grain, the 787C disc cuts faster and stays sharper longer than conventional fibre discs. This technology reduces grinding temperatures and fatigue, improving operator comfort and productivity.

The sharp triangular abrasive peaks slice cleanly through metals like stainless steel and high nickel alloys. This results in smoother finishes and less disc wear, making it suitable for weld removal and beveling tasks.

Durability For Heavy Use

The disc’s stiff fibre backing and strong resin bond provide excellent durability and tear resistance. This construction supports heavyweight applications such as edge chamfering and deburring without compromising disc life.

With a grinding aid incorporated, the disc minimizes heat buildup on heat-sensitive alloys, extending its lifespan and maintaining consistent cutting performance throughout its use.

Pack Size And Compatibility

Available in a pack of 25 discs and 100 discs per case, the 3M Fibre Disc 787C is designed for high-volume users who need reliable supply and consistent quality. This pack size supports efficient inventory management.

The discs require 3M disc pad face plates and hubs for attachment, which are sold separately. This ensures secure mounting and compatibility with a range of power tools for various grinding applications.