This 4-inch Type 29 flap disc uses zirconia alumina abrasive and an 80-grit cut to remove weld spatter, grind down welds, and blend surfaces on metal. The conical Type 29 profile keeps more of the disc face in contact with the work at a low angle, which improves material removal on flat stock and is easier to control along curved or irregular surfaces than a flat Type 27 disc.
Zirconia alumina holds up better under heat and pressure than standard aluminum oxide, so the disc maintains a consistent cut rate longer before it glazes out. That makes it a practical choice for grinding mild steel, stainless steel, and other ferrous metals where you need sustained cutting rather than a single light pass.
At $4.99, this disc fits grinders with a 4-inch wheel capacity. Check your grinder's arbor size before ordering to confirm fitment. It is suited for weld cleanup, surface prep before painting or coating, and general stock removal on fabrication and construction work.
- 4-inch diameter, Type 29 conical profile
- 80-grit zirconia alumina abrasive
- Designed for grinding and blending on metal surfaces
- Type 29 angle improves contact on flat and contoured workpieces
- Suitable for weld cleanup, surface prep, and stock removal on ferrous metals
