What tool is used to clean a file?

• A. Wire brush
• B. File card
• C. Rasp
• D. Sandpaper

Answer: (B)

Cleaning a file is essential because metal chips get packed between the teeth, quickly dulling the edge and reducing cutting efficiency. A file card is a specialized tool with stiff bristles designed specifically to comb debris out of the file’s teeth, lifting out chips so the teeth stay sharp and effective. Using a file card after use keeps the tool performing close to new and extends its life.

While a wire brush can remove surface debris, it doesn’t clean between the teeth as effectively. A rasp is used for rough material removal, not cleaning the file, and sandpaper is for smoothing surfaces, not restoring the file’s teeth. So the file card is the correct tool for this task.