1. Hole positioning gauge suitable for woodworking marking2. The ruler is wear-resistant, rust-proof, and has a clear scale3. 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 RulerMaterial: aluminum Color: red + black of application: woodworking, decoration design and useSize:6 InchPackage Contents:1 x Carpenter Measuring ToolOnly 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.