I lately wanted to make a slight adjustment to the angled a part of a mitered dovetail. I opened the joint sufficient to get a mill file by it, after which utilized a strip of blue tape to the aspect of the file that I didn’t wish to minimize. Subsequent I inserted the file and pushed the joint towards it. The tape let me trim only one aspect of the miter whereas sustaining the right angle, producing a flawless match.
—ANDREW KOSIBA, Gloversville, N.Y.
Illustrations by Dan Thornton
From Effective Woodworking situation #292