3M Flap Disc
3M Flap Disc 577F provides fast‑cutting alumina‑zirconia mineral on heavyweight polyester‑backed flaps for high‑pressure metalworking applications. It combines grinding and blending in one step, delivering a blended finish while extending disc life.
Key Features
- Alumina zirconia mineral with grinding aid for superior cutting power
- Heavyweight polyester backing for longer life on sharp‑edge work and beveling
- Overlapping flaps provide continuous fresh abrasive for consistent cuts
- Quick‑change disc design for easy replacement
Specifications
- Overall Diameter: 4 in, 4.5 in, 7 in (101.6 mm, 114.3 mm, 177.8 mm)
- Center Hole Diameter: 0.625 in, 0.875 in (15.875 mm, 22.225 mm)
- Center Hole Thread Size: 3/8"‑24, 5/8"‑11
- Disc Type: T27, T29
- Abrasive Material: Alumina Zirconia
- Backing Material: Polyester Cloth (YF Weight)
- Grit Options: 36, 40, 60, 80
- Maximum Speed: 8600 rpm, 13300 rpm, 15000 rpm
Applications
- Weld grinding and seam blending
- Edge beveling and sharp‑edge work
- Deburring and rust removal
- Stock removal and surface finishing
- General metalworking on right‑angle grinders
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Specifications
| Grit | 36,40,60,80 |
| Max Rpm | 8600 rpm,13300 rpm,15000 rpm |
| Disc Type | T27,T29 |
| Backing Material | Polyester Cloth |
| Abrasive Material | Alumina Zirconia |
| Center Hole Thread Size | 3/8"-24,5/8"-11 |
| Overall Diameter Metric | 101.6 mm,114.3 mm,177.8 mm |
| Overall Diameter Imperial | 4 in,4.5 in,7 in |
| Center Hole Diameter Metric | 15.875 mm,22.225 mm |
| Center Hole Diameter Imperial | 0.625 in,0.875 in |
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