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3M™ Precision-Shaped Grain
3M™ Flap Disc 769F — Ceramic Abrasive, Quick-Change
4-1/2 IN 40+ Grit Type 29 5/8 in-11 Quick Change 10-Pack
Built with 3M™ Precision-Shaped Grain — an engineered ceramic abrasive that fractures into sharp new cutting points as it wears — this flap disc cuts faster and lasts longer than conventional aluminum oxide and alumina zirconia flap discs. It leaves a finish one grade finer than a comparable fiber disc, making it a go-to choice for weld grinding, beveling, and blending on carbon steel, stainless, and heat-sensitive alloys.
Key Features
- 3M™ Precision-Shaped Grain (ceramic) cuts faster and lasts longer than conventional abrasive grain
- Individual flaps break down progressively, continuously exposing fresh, sharp mineral
- Combines grinding and finishing in a single step — fewer disc changes on the job
- Durable polyester (YF-weight) backing with resin bond for consistent, long service life
- 5/8 in-11 threaded quick-change attachment for fast disc swaps without removing the back-up pad nut
Recommended Applications
Specifications
| Diameter | 4-1/2 in (114.3 mm) |
| Attachment | 5/8 in-11, Quick Change |
| Grit | 40+ |
| Disc Type | T29 |
| Abrasive Mineral | Ceramic |
| Backing | Polyester, YF-Weight |
| Bond | Resin |
| Max Speed | 13,300 RPM |
| Weight / Disc | 0.272 lb |
| Pack Qty | 10 discs |
3M Part No. 7100244822