General description This 90 Degree Perforated Ruler is crafted from premium aluminum alloy, ensuring a long service life and a comfortable user experience. Its durable and robust design is wear-resistant and rust-proof, making it an essential tool for woodworking projects. Technical specifications Material: Aluminum Alloy Length: approx. 200 mm Thickness: about 4 mm - about 15 mm Model: T-200 Usage To use, find the hole corresponding to the scale, insert a pen into the hole, and draw the desired line. The T-shaped ruler allows for accurate marking and helps you draw perfect horizontal lines while sliding along the working edge. Other information Contents: 1 woodworking ruler