4” Foam Disc (7P)
4” Foam Disc (7P)
- Stock : In Stock
- Category : Foam Disc
- Sub Category : N/A
A 4" Foam Disc (7P)—commonly referred to in local workshops as a "foam disc" or "fiber wheel"—is a 4-inch non-woven nylon fiber polishing wheel designed for angle grinders. The 7P rating designates its specific hardness and density level (where 5P is soft, 7P is medium-hard, and 9P/12P are very hard).
Key Technical Specifications
- Diameter:4 inches (100 mm)
- Hardness Grade:7P (Medium-firm density providing excellent structural balance for consistent surface contact)
- Thickness:Approximately 12 mm (0.48 inches)
- Bore / Inner Diameter:16 mm (0.63 inches) to fit standard 4-inch angle grinder spindles
- Material Structure:Three-dimensional mesh of nylon fibers intertwined with abrasive grains