Forney 20068 4-1/2 in. Type 29 Flap Disc 40-Grit Aluminum Oxide

The Forney 20068 is a 4-1/2 inch Type 29 Flap Disc featuring 40-grit aluminum oxide abrasive material, engineered for aggressive material removal on metal surfaces. The angled Type 29 design provides a larger contact area compared to flat Type 27 discs, making it ideal for blending, grinding, and finishing welds on flat and contoured workpieces.

Key Features:

• Disc Diameter: 4-1/2 inches
• Disc Type: Type 29 (conical/angled profile)
• Abrasive Material: Aluminum Oxide
• Grit: 40 (coarse — ideal for fast stock removal and weld grinding)
• Arbor Size: 7/8 inch
• Compatible with: Standard 4-1/2 in. angle grinders
• Overlapping abrasive flaps provide consistent cut and longer disc life
• Fiberglass backing plate for strength and stability under load

Forney's aluminum oxide flap discs are a go-to choice for welders and fabricators needing reliable performance on steel, iron, and other ferrous metals. The 40-grit coarse abrasive aggressively removes weld spatter, scale, and surface imperfections, while the flap construction runs cooler than traditional grinding wheels to help preserve workpiece integrity.