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Orange 3M Cubitron 987C fiber disc 4 1/2 inch 80 grit 7/8 inch arbor pack of 25

3M

3M Cubitron 987C Fiber Disc 4 1/2 in 80 Grit 7/8 in Arbor PK25

SKU CH-4GQ2-FAPDA

A pack of 25 ceramic-coated fiber discs with self-lubricating grinding aid for fast, cool cutting at up to 13,300 RPM

  • Ceramic abrasive cuts faster and lasts longer
  • Self-lubricating grinding aid reduces heat buildup
  • Tear-resistant fiber backing withstands heavy pressure
  • 13,300 RPM max speed matches high-speed grinders
  • Pack of 25 discs keeps workflow moving

3M Cubitron 987C 4 1/2 in Fiber Discs

This pack contains 25 ceramic-coated fiber discs built for aggressive material removal on metal surfaces. The 80 grit rating makes them suitable for weld blending, edge grinding and heavy stock removal in fabrication shops.

Self-lubricating grinding aid reduces heat

The integrated grinding aid lowers friction during extended use, helping to prevent workpiece discolouration and extending disc life. Closed-coat coverage keeps the abrasive surface consistent across the full 4 1/2 in diameter.

13,300 RPM maximum operating speed limit

Each disc is rated for a top speed of 13,300 RPM, so the angle grinder used must not exceed this figure. The 7/8 in unthreaded arbor fits standard grinders, but higher-speed tools or undersized back-up pads would create a safety hazard.

Highlights

  • Ceramic abrasive cuts faster and lasts longer
  • Self-lubricating grinding aid reduces heat buildup
  • Tear-resistant fiber backing withstands heavy pressure
  • 13,300 RPM max speed matches high-speed grinders
  • Pack of 25 discs keeps workflow moving

Specifications

Brand3M CUBITRON

Questions about this item

How many discs are in the pack and when will I need to replace them?

The pack contains 25 discs; replace each disc when the ceramic abrasive wears down and cutting performance drops.

What is the maximum operating speed I must not exceed during continuous grinding?

Do not exceed 13,300 RPM; running above this limit risks disc failure and unsafe operation.

Does the self-lubricating grinding aid keep the disc cool enough for all-day use?

The grinding aid reduces heat buildup, but sustained high-speed work will still generate noticeable warmth at the workpiece.

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