Premium Material: Our 3D angle square tool is made of high-quality alloy aluminum material and has undergone professional oxidation treatment. It has very high hardness, is wear-resistant and corrosion-resistant, and is therefore durable. Multiple Functions and Various Angles: The block design of this tool is particularly original and includes many functional elements such as a square, round holes, parallel lines, perpendicular lines, a drilling position, a T-line as well as angles ranging from 22.5° to 90°. It is also equipped with a drilling guide and corresponding drill diameter settings. Wide Application: The carpenter's protractor has an extremely wide application. Whether it's three-dimensional workpieces made of aluminum alloy, wood, stainless steel, or marble, it is a very useful protractor in all carpentry, engineering, and construction tasks. Indispensable tool in the work: Our 3D corner square is undoubtedly an indispensable tool in the carpentry sector. It is suitable for