How to Use a File. Files are designed to smooth wood, metal and plastic. You can remove burrs from corners and sharpen metal edges with one as well. A file cuts only on the push stroke and leaves marks on the surfaces that must later be smoothed with sandpaper.
Things You'll Need
Double-cut Files
Single-cut Files
Curved Tooth Files
Flat Files
Half-round Files
Round Files
Square Files
Triangle Files
Wood Files
Step 1
Match the file shape to the workpiece ' is it flat, round or angled?
Step 2
Make sure the file lies flat on the work surface.
Step 3
Use the file diagonally. Push with one hand on the handle and use the heel of the other hand to guide the file.
Step 4
Work from left to right along the work surface. Reverse direction when you reach the end and work your way back to the beginning.
Step 5
File until you're satisfied with the smoothness of the work.
Step 6
Clean the teeth often with a file card.
Tip
Keep the file flat to avoid rounding the corners of the work. Fit your files with handles for your comfort and protection.