Made of aluminum alloy, wear-resistant, anti-oxidation, durable and high precision measurement. Clear engraving metric graduation, accurate and easy to read. Dimensional paints for labels. Measure and transfer the dimensions of angles. 45 degree and 90 degree marking gauge for parallel lines. Drill sizes with drill guide. Can be used as a marking gauge for parallel lines, measuring 45 and 90 degrees. Superb carving, high hardness and durability. Clear reading, easy to read and elegant. No need to turn the body over when measuring, just slide to mark the 45 degree or 90 degree angles. It is a perfect gift for Christmas, Valentine's Day, Father's Day, Birthday, for men, father, boyfriend or husband. Note: The data is manual measurement, please allow 1-3cm error, due to the differences between the light and the screen, there will be a certain color difference, the specific received in kind prevail.