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3M™ Fibre Disc 985C

Products
  • 3M™ Ceramic Abrasive Grain offers exceptional performance in medium to high pressure applications
  • Ceramic grain requires less pressure, reducing operator fatigue
  • Stiff fiber backing provides the durability needed for heavy stock removal and high-pressure weld leveling
  • 7/8 inch center hole mount is compatible with 3M™ disc pad face plates and hubs, and requires the use of a disc retainer nut (all sold separately)
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Overall Diameter (Imperial)
Max RPM
Grit
Products Available
Available options:
 Overall Diameter (Imperial), Max RPM and Grit
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Specifications
Attribute Name
Value
Application
Finishing, Grinding
Application Category
Blending/Deburring, Grinding/Metal Stock Removal
Attachment Type
Center Hole
Backing Material
Fibre
Brand
3M™
Center Hole Diameter
0.875 in
Center Hole Diameter (Metric)
22.225 mm
Coat Type
Closed Coat
Color
Orange, Orange
Equipment - Machines
Right Angle Grinders
Form Type
Fibre
For Use On
Aluminum, Stainless Steel
Grit
60, 80
Industries
Metalworking
Max RPM
12000, 8600
Mineral Type
Ceramic
Overall Diameter (Imperial)
5 in, 7 in
Overall Diameter (Metric)
127 mm, 177.8 mm, 127 mm, 177.8 mm
Position
Best
Primary Application
Metalworking
Product Form
Disc
Sub Industries
Sub Applications
Substrate
Aluminum, Stainless Steel
Product Details
  • 3M™ Ceramic Abrasive Grain offers exceptional performance in medium to high pressure applications
  • Ceramic grain requires less pressure, reducing operator fatigue
  • Stiff fiber backing provides the durability needed for heavy stock removal and high-pressure weld leveling
  • 7/8 inch center hole mount is compatible with 3M™ disc pad face plates and hubs, and requires the use of a disc retainer nut (all sold separately)
  • Grinding aid reduces grinding temperatures for processes involving heat-sensitive alloys such as stainless steel, nickel alloys, and titanium

3M™ Fibre Disc 985C offers an exceptionally fast cut and extreme durability for high-pressure applications on all metals by incorporating 3M™ Ceramic Abrasive Grain and a grinding aid on a stiff fiber backing. Designed for both long life and superior performance in aggressive, heavy-duty applications, ceramic fiber discs minimize edge wear, enhance productivity, and reduce material consumption.

3M™ Fibre Disc 985C
3M's better choice for a long-lasting, premium disc for stainless steel
Our Fibre Disc 985C incorporates a grinding aid to keep the workpiece cooler, protecting heat-sensitive alloys from heat damage and reducing re-work. Choose this disc for high-pressure stock removal, weld leveling, and beveling on all metals, especially stainless steel. The disc is resin-bonded to withstand high heat and pressure in demanding applications.

3M™ Ceramic Abrasive Grain exceeds conventional abrasives in durability, disc life, and cut-rate, offering greater throughput in less time. Additionally, less pressure is required to achieve maximum performance, in turn reducing operator fatigue and extending tool life. 3M™ Ceramic Abrasive Grain is a 3M proprietary ceramic mineral formed using a process to enhance toughness and hardness of the grain. It is chemically engineered with a unique "stay sharp" crystalline structure, which continually self-sharpens cutting edges on the surface of the disc, ensuring extended high performance in high pressure production environments, even on the toughest materials. These discs enable operators to do more work in less time, for significant gains in productivity.

Fiber discs are heavy-duty discs ideal for weld removal, grinding, and blending large and small areas of metal surfaces. They feature a tough, stiff backing made from vulcanized fiber that resist wear and can handle tough grinding applications. Fiber discs with a 7/8 inch center hole are mounted onto a right angle sander. They are secured to the disc pad hub and face plate with a compatible disc retainer nut (all sold separately). 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 fine grade grinding applications, and a harder density face plate for coarse grade grinding applications. Using the correct face plate for the application ensures that the abrasive mineral will continually re-sharpen, maximizing the life of the abrasive.

Customer Reviews
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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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