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Pack of 50 brown 3 inch quick-change sanding discs P120

3M

3M 49943 361F Quick Change Disc P120 3in PK50

SKU CH-FWEX-PN6JB MPN 49943

Quick-change aluminium-oxide sanding disc, 3 in diameter, P120 grit, rated to 20,000 RPM, pack of 50

  • TypeSanders
  • Quick-change TS system speeds disc swaps
  • P120 aluminum oxide grit suits medium sanding
  • 20,000 RPM max speed handles high-speed tools
  • 3-inch diameter fits standard quick-change holders
  • Pack of 50 discs covers extended jobs

3M 361F Quick-Change Discs

The 3M 361F discs are 3-inch coated abrasives designed for quick-change sanding systems. Each disc uses aluminum-oxide grain on a polyester XF-weight backing with a closed-coat construction. The TS quick-change attachment fits compatible backup pads for fast disc swaps. A pack contains fifty discs ready for workshop use.

Suited for medium-grade surface preparation

These P120 grit discs suit metalworkers and woodworkers performing intermediate sanding, blending or finish preparation on ferrous and non-ferrous materials. The heat-resistant coating helps maintain cutting life during sustained contact. Buyers needing aggressive stock removal or ultra-fine finishing should select coarser or finer grades instead.

Fifty-disc pack covers extended jobs

The fifty-piece quantity provides enough media for multiple work sessions on larger panels or repeated component refinishing. At the rated 20,000 RPM maximum operating speed the discs handle high-speed orbital or die-grinder applications without exceeding design limits. Very high-volume production lines may require bulk cases beyond this pack size.

Highlights

  • Quick-change TS system speeds disc swaps
  • P120 aluminum oxide grit suits medium sanding
  • 20,000 RPM max speed handles high-speed tools
  • 3-inch diameter fits standard quick-change holders
  • Pack of 50 discs covers extended jobs

Specifications

TypeSanders
Brand3M
Model49943

Questions about this item

What backing pad and quick-change system does the 3M 49943 disc require to operate?

The disc uses a 3-inch diameter and the TS quick-change system, so a compatible TS-style backing pad rated for at least 20,000 RPM is required.

Can the P120 grit 361F disc be used on the same tool as finer or coarser 3M quick-change discs?

Yes, any 3M quick-change disc with the same 3-inch TS fitting will mount on the same backing pad, letting you swap grades without changing hardware.

How can I confirm the 3M 49943 discs are running at the correct speed after installation?

Run the tool up to its rated maximum of 20,000 RPM; the disc should spin smoothly without vibration, and the brown aluminum-oxide surface will cut cleanly without glazing.

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