3M
3M 27402 Cubitron II 982C Fiber Disc 7in 36G 25pk
A 25-pack of 7-inch ceramic fiber discs with 36 grit for aggressive material removal at up to 8,600 RPM
- TypeSanders
- Cuts aggressively with 36-grit ceramic abrasive
- Resists tearing thanks to YF-weight fiber backing
- Runs safely at 8,600 RPM maximum speed
- Fits 7/8-inch unthreaded arbor on 7-inch tools
- 25 discs per pack for extended use
3M 982C Ceramic Fiber Disc Pack
The 3M Cubitron II 982C fiber disc uses ceramic abrasive on a YF-weight fiber backing for aggressive stock removal. Each 7-inch disc features a 7/8-inch unthreaded center hole and a closed-coat construction that resists loading. The maroon discs are graded extra coarse at 36 grit and come in a pack of 25 for high-volume sanding tasks.
Sustained cutting on metal and composites
Ceramic grain fractures continuously under pressure to expose fresh cutting edges throughout the disc life. The tear-resistant fiber backing maintains integrity at the maximum operating speed of 8,600 RPM during extended grinding sessions. Closed-coat coverage distributes swarf evenly to reduce heat buildup and prevent premature dulling on tough substrates.
Replaces conventional aluminum oxide discs
Upgrading is worthwhile when standard discs wear too quickly on hard metals or welded seams. The ceramic mineral cuts faster and lasts longer, reducing changeover frequency in production environments. Shops staying with conventional abrasives will see higher disc consumption and slower material removal on the same applications.
Highlights
- Cuts aggressively with 36-grit ceramic abrasive
- Resists tearing thanks to YF-weight fiber backing
- Runs safely at 8,600 RPM maximum speed
- Fits 7/8-inch unthreaded arbor on 7-inch tools
- 25 discs per pack for extended use
Specifications
| Type | Sanders |
|---|---|
| Brand | 3M |
| Model | 27402 |
Questions about this item
How much heat builds up when the 982C disc runs at 8,600 RPM for extended periods?
The ceramic abrasive on the 982C disc is engineered to run cooler than conventional grains, reducing heat buildup on the workpiece during prolonged high-speed sanding.
What backing pad or arbor does the 7/8 in unthreaded hole require to mount on my sander?
The 7/8 in unthreaded centre hole fits standard 7 in fibre disc backup pads with a matching 7/8 in arbor, secured by the tool's own retaining nut.
Will the 36 grit 982C disc load up quickly on the older paint layers I usually strip?
The closed-coat ceramic grain resists loading on paint and body filler, so the 36 grit disc maintains cutting speed longer than conventional abrasives on the same surfaces.
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