3M
3M 22394 361F Quick Change Disc 3 in 50 Grit PK50
Quick-change sanding disc with aluminum oxide coating, 50 grit, 3 inch diameter, TR attachment, 20,000 RPM maximum speed, pack of 50
- 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.
Highlights
- 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
Specifications
| Type | Sanders |
|---|---|
| Brand | 3M |
| Model | 22394 |
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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