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Pack of 50 black 2in quick-change sanding discs

3M

3M 14559 361F Quick Change Disc 2in P150 PK50

SKU CH-86NM-XSX54 MPN 14559

Quick-change sanding disc with aluminum-oxide coating, 2-inch diameter, P150 grit, TR attachment, rated to 25,000 RPM, pack of 50

  • TypeSanders
  • Quick-change TR system speeds disc swaps
  • Aluminum oxide grain cuts metal and wood
  • P150 grit leaves a smooth surface
  • 25 000 RPM rating handles high-speed sanders
  • Pack of 50 discs keeps the job going

2-inch Quick-Change Sanding Discs

These 3M 361F discs use a TR quick-change system for fast swaps on compatible sanders. The 2-inch diameter suits detail work and tight contours in metal finishing or paint preparation. Aluminum oxide grain on a polyester XF backing provides consistent cutting action. A pack of fifty discs supports extended shop use.

Medium-Grit Limits on High-Speed Tools

The P150 grade removes material faster than fine grits but leaves visible scratches that require further refinement. Closed-coat coverage resists loading yet can clog on soft aluminium or sticky coatings without regular cleaning. Maximum rated speed is 25 000 RPM; exceeding this risks disc disintegration and operator injury. Heat resistance helps but prolonged heavy pressure will still glaze the surface.

TR Quick-Change Compatibility Decides Fit

Only sanders and holders equipped with a TR (Type R) quick-change interface will accept these discs; other systems such as TS or Roloc will not engage. The 2-inch diameter must match the holder size exactly — larger or smaller pads will not secure the disc. Verify your tool's specification before ordering.

Highlights

  • Quick-change TR system speeds disc swaps
  • Aluminum oxide grain cuts metal and wood
  • P150 grit leaves a smooth surface
  • 25 000 RPM rating handles high-speed sanders
  • Pack of 50 discs keeps the job going

Specifications

TypeSanders
Brand3M
Model14559

Questions about this item

Should I choose the P150 grit or a different grade for medium surface prep?

The disc is graded P150 which is classified as medium, making it suited for intermediate sanding between coarse removal and fine finishing.

What does the 25,000 RPM maximum speed mean when the disc is mounted on my sander?

It is the highest safe spindle speed; running the tool faster risks disc failure so the sander must be rated at or below 25,000 RPM.

How does the TR quick-change system affect disc changes and compatibility?

The TR (Type R) roll-on/roll-off design lets you twist the disc on and off in seconds, but it only fits backing pads and tools that accept the TR pattern.

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