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Maroon 5-inch fiber disc with GL quick-change hub

3M

3M 27406 Cubitron II 982C 5in 36G GL PK25

SKU CH-J4RV-NRCCC MPN 27406

Ceramic fiber disc with GL quick-change mount, 36 grit for aggressive stock removal, 25 per pack

  • TypeSanders
  • Extra-coarse 36 grit removes material fast
  • Ceramic abrasive resists tearing under load
  • Closed coating keeps cutting surface consistent
  • GL quick-change hub fits 5/8 in.-11 spindles
  • Pack of 25 discs supports high-volume work

3M Cubitron II 982C 5in 36G Discs

These 5in fiber discs use ceramic abrasive on a YY-weight fiber backing for aggressive stock removal. The GL quick-change connector fits 5/8in-11 spindles and the pack contains 25 discs. They suit metal fabrication shops that need fast cutting on steel and stainless.

Closed-coat ceramic cuts to 12,000 RPM limit

The closed-coating resists loading but generates more heat than open-coat alternatives. Maximum operating speed is 12,000 RPM so the disc must run on a matching or lower-rated sander. Extra-coarse 36 grit removes material quickly but leaves a deep scratch pattern that requires finer steps.

Replaces conventional aluminum oxide fiber discs

The ceramic grain stays sharp longer than aluminum oxide on hard alloys, reducing change-over frequency. The jump is worth it when grinding high volumes of carbon steel or stainless where disc life outweighs the higher per-unit cost. Not for light deburring or finish work where finer grits are needed.

Highlights

  • Extra-coarse 36 grit removes material fast
  • Ceramic abrasive resists tearing under load
  • Closed coating keeps cutting surface consistent
  • GL quick-change hub fits 5/8 in.-11 spindles
  • Pack of 25 discs supports high-volume work

Specifications

TypeSanders
Brand3M
Model27406

Questions about this item

Which grit and pack size should I choose for heavy stock removal?

The 36 grit extra-coarse grade removes material quickly; each box contains 25 discs for extended use.

What does the 12,000 RPM maximum speed mean when the disc is mounted on my sander?

It is the highest safe spindle speed — run the tool at or below 12,000 RPM to avoid disc failure.

How does the 5/8 in.-11 GL connector affect which tools I can use?

The GL quick-change hub fits 5/8 in.-11 spindles, letting you swap discs without tools on compatible right-angle grinders.

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