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Mirka 66-301-080 3 inch Ceramic Ultra X Type R disc

Mirka

Mirka 66-301-080 3" Ceramic Ultra X Type R

SKU CH-S4X7-0MP45

A 3-inch ceramic abrasive disc for surface finishing, first listed by the manufacturer in 2022

  • 3" diameter suits compact tooling
  • Ceramic Ultra X abrasive cuts aggressively
  • Type R rating matches high-speed demands
  • Mirka brand backs industrial reliability
  • First listed by manufacturer June 2022

Product identity

The Mirka 66-301-080 is a 3 inch ceramic abrasive disc manufactured by Mirka. It belongs to the Ultra X Type R series and was first listed by the manufacturer in 2022. This part is designed for use with compatible sanding machinery in automotive and industrial refinishing applications. The product is supplied in new condition.

Suitable users

This disc suits technicians who need a 3 inch ceramic abrasive for surface preparation or paint removal on dual-action or rotary sanders. It is not intended for buyers who require a different diameter, a non-ceramic grain type, or a backing style other than Type R. Users without a machine that accepts 3 inch Type R discs should look at alternative sizes or attachment systems.

Installation notes

Fitting the disc requires aligning the Type R backing with the matching interface pad or backing plate on the sander. The most common issue is using a worn or incorrect backing plate, which prevents the disc from seating securely and leads to vibration or premature wear. Ensure the machine spindle and pad are clean before mounting.

Highlights

  • 3" diameter suits compact tooling
  • Ceramic Ultra X abrasive cuts aggressively
  • Type R rating matches high-speed demands
  • Mirka brand backs industrial reliability
  • First listed by manufacturer June 2022

Specifications

BrandMIRKA

Questions about this item

What backing pad thread is required for the 66-301-080 disc?

The 66-301-080 uses a Type R quick-change fitting, so the backing pad must carry the matching Type R male thread to lock the disc securely.

Will the 3-inch diameter fit my existing 3-inch orbital sander?

Yes, the 3-inch diameter matches standard 3-inch orbital sanders; the only requirement is that the sander’s pad accepts Type R discs.

How can I confirm the 66-301-080 is cutting correctly after installation?

A fresh 66-301-080 disc should remove material evenly with minimal pressure and produce a consistent scratch pattern across the workpiece.

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