Pin-Worm Hole by Jana L | Mar 3, 2022 | Glossary of Terms, Glossary of Terms -P, Uncategorized | 0 comments In hardwood flooring, a small round hole not more than 1/16″ (1.5626mm) in diameter, made by a small wood-boring insect. Submit a Comment Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment.