Which abrasive cloth is used to clean paint or rust from the knife edge?

• A. 320 Grit Aluminum Oxide Abrasive Cloth
• B. 600 Grit Aluminum Oxide Abrasive Cloth
• C. Silicone Carbide Abrasive Cloth
• D. Sandpaper 150 Grit

Answer: (A)

When cleaning paint or rust from a knife edge, you want an abrasive that removes coatings without gouging or thinning the edge. Aluminum oxide is a reliable choice for steel surfaces, and the cloth format lets you work along the edge to control material removal. A mid-range particle size, like 320 grit, strikes the right balance: it wipes away paint and rust efficiently while preserving the knife’s geometry. A finer grit (600) would remove material more slowly and may not fully remove coatings, while silicone carbide cloth can be harsher on a thin edge and isn’t as well suited for routine knife-edge cleaning. Sandpaper at 150 grit is coarser and not the preferred cloth for this task.