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Green quick-change sanding discs, 3 inch, pack of 50

3M

3M 22394 361F Quick Change Disc 3 in 50 Grit PK50

SKU CH-NRJQ-BMQ56 MPN 22394

Quick-change sanding disc with aluminum oxide coating, 50 grit, 3 inch diameter, TR attachment, 20,000 RPM maximum speed, pack of 50

  • Product typeSanders
  • Quick-change TR system speeds disc swaps
  • Aluminum oxide grain cuts fast on coarse 50 grit
  • Polyester YF backing resists heat during heavy use
  • 20,000 RPM rating matches high-speed sanders
  • Pack of 50 discs keeps production running

3M 361F Quick Change Disc 3 in 50 Grit

The 3M 22394 Quick Change Disc is a coated abrasive disc designed for power sanders. It uses aluminum oxide grain on a polyester backing with a YF weight. The green disc comes in a pack of 50 and fits TR quick-change systems.

Capacity and headroom for coarse sanding

With a 50 grit coarse grade and closed coating coverage, the disc removes material quickly on metal or wood. It handles heat resistance during extended use and runs at a maximum operating speed of 20,000 RPM. The 3 inch diameter limits the contact area for large surfaces.

TR quick-change compatibility decides fit

The disc uses a TR style attachment that locks into compatible backup pads. Only tools and holders accepting the TR system will secure this disc correctly. Buyers with different quick-change interfaces cannot use this product.

How it compares

Measured against everything we stock in Sanders, Rotary & Demolition Tools, at today’s prices. Recalculated every night.

Price $70.99
Pricier than about 77% of the 477 comparable items (median $21.99).

Specifications

Product
Brand name3M
Model name22394
Product typeSanders

Questions about this item

Will the 3 in 50 grit 361F discs run safely on my 20,000 RPM sander?

Yes, the maximum operating speed is rated at 20,000 RPM so they match that tool.

How can I confirm the quick-change TR system is engaging properly after I mount a disc?

The disc locks with a firm quarter-turn; if it seats flush and does not wobble at speed, the TR connection is secure.

Does the PK50 pack include a backup pad or only the 50 green aluminum-oxide discs?

Only the 50 coated discs are in the box; a compatible TR backup pad must be purchased separately.

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