Perforated holes to create flat holes to match the width of the lace.
Chrome plated for rust resistance
Use straight line.
How to use: Place the rubber plate vertically on the ground line and hammer to drill holes. The straight line can be moved between the front hole and the blade is stacked at equal intervals.
Size: 3mm
Caution: Sharp tip, handle with care. Keep out of reach of children.
(From Amazon.co.jp)