1. Hole positioning gauge suitable for woodworking marking 2. The ruler is wear-resistant, rust-proof, and has a clear scale 3. Made of aluminum instruct: Find the hole corresponding to the scale and insert the pencil into the hole. Move the ruler to draw you need. (Each hole represents 1mm, and the distance between two holes is 1/32Inch) Name: Woodworking Ruler Material: aluminum Color: red + black of application: woodworking, decoration design and use Size:6 Inch Package Contents: 1 x Carpenter Measuring Tool Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.