Function: With T-ruler marking, follows the edge of your work piece to perfectly mark horizontal or vertical lines, micro-fine marking holes and slots place your mark exactly on target, makes ruler woodworking tool a perfect tool for you. Aluminum Alloy Material: Made of aluminum alloy, it is wear-resistant, rust-resistant and durable. It has torsion resistance, durability and corrosion resistance. Suitable for wood scribing. Compact Size: 6.8 x 4 x 0.9cm. Mini ruler easy to carry and use. Each hole has a 0.5mm pitch and precise fine measurement to help you do better woodworking. Easy to Use: The marking ruler is accurate, versatile, and easy to use. Find the hole corresponding to the scale, insert the pen into the hole, and draw the line you want. Precise: Precise marking rulers can help you draw perfect horizontal lines while sliding the rulers along the edge working. Features: Material: Aluminum Alloy. Color: Red. Dimensions: 68 x 40 x 9mm (approx). Uses: Woodworking Scribing Aid. Contents: 1 x Woodworking Scriber.