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Maroon non-woven disc, 4 inch TR quick-change, medium grade

3M

3M 12953 Surface Conditioning Disc 4 in Medium TR 12,000 RPM

SKU CH-EWT3-AX584 MPN 12953

A non-woven aluminum-oxide disc for surface conditioning at up to 12,000 RPM

  • TypeSanders
  • Medium-grade aluminum oxide for consistent surface prep
  • Open-coat non-woven resists loading during use
  • 4-inch TR quick-change fits compatible holders
  • Rated 12,000 RPM maximum operating speed
  • Maroon colour identifies medium grade at a glance

Application fit

This 3M surface conditioning disc is designed for cleaning, blending and finishing on metal, wood or composite surfaces. The medium-grade aluminum-oxide abrasive suits general preparation tasks in automotive, fabrication and maintenance workshops. Buyers who need aggressive stock removal or a mirror polish will require a different grade or product type.

Thermals noise power

The non-woven construction runs cool and resists loading, keeping vibration and heat low during extended use on a die grinder or rotary tool. No external power supply or cooling is involved; the disc simply mounts on the tool’s quick-change spindle.

Build integration

A TR quick-change system allows tool-free swaps on compatible 4-inch backing pads, reducing downtime between steps. The 12,000 RPM maximum speed matches common pneumatic and electric grinders, so the disc fits existing equipment without adapter purchases.

Highlights

  • Medium-grade aluminum oxide for consistent surface prep
  • Open-coat non-woven resists loading during use
  • 4-inch TR quick-change fits compatible holders
  • Rated 12,000 RPM maximum operating speed
  • Maroon colour identifies medium grade at a glance

Specifications

TypeSanders
Brand3M
Model12953

Questions about this item

How do I install the 3M 12953 disc on a TR quick-change tool, and what step is often missed?

Align the TR lugs on the disc with the tool's slots, push on, then twist to lock; the step often missed is confirming the disc seats fully before tightening.

When will the aluminum oxide non-woven material need replacement during finishing work?

Replace the disc when the maroon surface glazes over, cutting action drops noticeably, or the open coating loads with residue despite the load-resistant design.

What limit appears first if I run the disc continuously at 12,000 RPM?

The 12,000 RPM maximum operating speed is the primary limit; exceeding it risks disc disintegration, so sustained use must stay at or below that rating.

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