Used for marking wood prior to sawing, chiseling or cutting. This marking gauge features a radiused bottom edge to slide easily on the material being marked. Single marking pin on one side, and dual pins and the other side to mark out make this tool a must have for any serious woodworker. Size : 3.Note: Remember to wear eye protection.Note: Photographs are for illustration purpose only. Actual item may slightly differ from the pictures shown.Scorpion is committed to providing the customer with the best source for value possible on the market. You will enjoy the quality, function and usefulness of our products