Features: 1.EASY TO READ VALUES: The numerical value is easy to read, and the measurement accuracy can reach millimeter. The numbers of the woodworking ruler are laser etched, the scale is more accurate and the mark is clearer. 2.ADJUSTABLE POSITIONING LOCK: Woodworking tools ruler has an adjustable positioning lock. Adjust the block according to the measurement needs. Control the thumb screw on the lock, you can easily fix or move it. 3.THREE SIZES: Woodworking marking measuring ruler includes 6 inch, 8 inch, and 12 inch aluminum precise rulers available in three sizes to meet your various woodworking measurements. 4.ALUMINUM ALLOY: T type scribing ruler is made of aluminum alloy with a multi step process that is rust proof, lightweight, and won't wear out after tens of thousands of uses. 5.FADE RESISTANT: Woodworking marking measuring ruler has a long service life. With laser engraving the graphics on the surface of the woodworking ruler, the scales will not fade during high strength use. specification:Item Type: Woodworking Tools Ruler Material: Aluminum Alloy Ruler: 6 Inch, 8 Inch, And 12 Inch Aluminum Precise Ruler Application: Can Be Used for Many Occasions, Tailor Store, Handicraft, Blacksmith Store, Lumberyard, Etc. Color: Black PackageList:3 x WoodworkingToolsRuler NotePlease allow some error due to manual measurement.