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3M™ Fibre Disc 381C, 24, 7 in x 7/8 in, Die 700BB, 25 per case

Part Number 381C3M ID 60440205338UPC 00051144813704
  • Heavy weight fibre backing is tough and durable
  • Versatile disc can tackle many applications, from grinding to blending
  • Used with portable tools for easier access of workpiece
  • Closed-coat construction provides good grain density and durability
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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
Brown, Brown
Equipment - Machines
Right Angle Grinders
Form Type
Fibre
For Use On
Carbon Steel
Grit
24
Industries
Marine, Metalworking, MRO
Max RPM
8600
Mineral Type
Aluminum Oxide
Overall Diameter (Imperial)
7 in
Overall Diameter (Metric)
177.8 mm, 177.8 mm
Position
Good
Product Form
Disc
Sub Industries
Sub Applications
Substrate
Carbon Steel
Product Details
  • Heavy weight fibre backing is tough and durable
  • Versatile disc can tackle many applications, from grinding to blending
  • Used with portable tools for easier access of workpiece
  • Closed-coat construction provides good grain density and durability
  • Resin bond withstands heat and stabilizes the disc under pressure and heat to increase productivity

Our 3M™ Fibre Disc 381C is a versatile and general purpose metalworking disc, designed to help with a variety of applications from grinding, weld removal & finishing to blending on common metals like carbon steel.

Altogether, fiber discs are durable abrasive discs that deliver a fast cut for grinding and weld removal, and they come in a range of sizes to correspond to large or small welds.
General purpose disc for weld removal, grinding and blending
Durable and Dependable
We engineer 3M™ Fibre Disc 381C by adhering aluminum oxide mineral to a fibre backing. The closed coat construction on 3M™ Fibre Disc 381C means mineral grains cover nearly 100% of the backing, so the abrasive is durable under pressure. The stiff fibre backing is extremely durable, withstanding wear, while standing up to tough applications like beveling.

Tips for Optimal Use
Altogether, fiber discs are durable abrasive discs that deliver a fast cut for grinding and weld removal, and they come in a range of sizes to correspond to large or small welds. Fiber discs also work well for blending (creating a smooth surface after weld removal) and provide a consistent finish over the workpiece. These discs may be used with portable tools, facilitating easier access with the workpiece. 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 finer grade applications and a harder density face plate for more coarse 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™ Fibre Disc 381C
Resin bond aluminum oxide provides durability and aggressive stock removal
Good for General Purpose Metalworking
When it comes to our 3M™ Fibre Disc product offerings, we recommend operators choose the performance level suited to their unique project needs. 3M™ Fibre Disc 381C offers an economical solution for a general purpose metalworking disc, because it can perform well on a variety of projects without sacrificing performance. Given its versatility, you'll find the 3M™ Fibre Disc is applicable in many markets, as evidenced by its use in the marine and metalworking industries as well as in maintenance and repair operations. 3M Fibre Disc 381C is a great multi-purpose disc that's good to have on hand.

Learn more about Metalworking solutions (PDF, 13 Mb).

Product Mineral Type Performance
3M™ Fibre Disc 381C Aluminum Oxide
Good
3M™ Fibre Disc 501C Aluminum Zirconia
Better
3M™ Fibre Disc 988C Ceramic Abrasive Grain
Better
3M™ Cubitron™ II Fibre Disc 982C Precision Shaped Ceramic
Best


Cut Rate
Life
381C
501C
988C
982C

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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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