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381C Series Coated Fiber Disc, 5 in Dia, 16 Grit, Very Coarse Grade, 12000 rpm, Brown

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3M 21989 381C Series Coated Fiber Disc, 5 in Dia, 16 Grit, Very Coarse Grade, 12000 rpm, Brown

Item #: 21989 by 3M

UPC #: 051144219896

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Features
  • Heavyweight fiber backing is tough and durable
  • Versatile disc can tackle many applications, from grinding to blending
  • Closed-coat construction provides good grain density and durability
  • Resin bond withstands heat and stabilizes the disc under pressure and heat to increase productivity
  • Used with portable tools for easier access of workpiece

Color/Finish

Brown

Series

381C

Grit

16

Application

Facilities Management, Marine, Maritime, Metalworking, MRO

Abrasive Material

Aluminum Oxide

Grade

Very Coarse

Center Hole Size (in)

7/8"

Part no.

21989

Backing Material

Fiber

Maximum Speed (rpm)

12000

Disc Diameter (in)

5

MFR Model

21989

Attachment Type

Center Hole

Maximum RPM

12000

Disc Diameter

5"

Color

Brown

Alternative UPC

60440205528

Product Overview
3M™ fiber disc 381C is a versatile and general-purpose metalworking disc, designed to help with a variety of applications from grinding, weld removal and finishing to blending on common metals like carbon steel. The closed coat construction on 3M™ fiber disc 381C means mineral grains cover nearly 100% of the backing, so the abrasive is durable under pressure. The stiff fiber backing is extremely durable, withstanding wear, while standing up to tough applications like beveling.
3M coated 381C fibre disc uses aluminum oxide as the abrasive material and has a diameter of 5 in. 3M incorporates this aluminum oxide material into the fibre disc forming a grit of 16. All abrasive products that rotate or spin, such as the ones in this category, have a maximum speed at which you can run them. This 3M fibre disc can be run at a maximum speed of 12000 RPMs.
Specifications:

Abrasive Type: Coated