CHALK UP ANOTHER TIP
To prevent a clogged file from marring your work, try filling the file’s teeth with chalk. Children’s sidewalk chalk works well for this. Should the file become clogged, a length of 3/8″ or 1/2″ copper tubing, with one end flattened, will quickly clear the clogs. It works better than a file card brush and will not dull the file. Use the copper tube like a scraper, moving parallel with the teeth. Wrap tape around the other end to protect your hand.

Tom Nichols
Automotive Machine & Supply, Inc
Cleburne, TX
August, 2021