Aluminum Alloy Multi-Angle Jig Tool: The angle finder is made of aluminum alloy. Not easy to bend or break, rust. It is more durable and stronger than plastic. 1 inch thick aluminum alloy material. 12 Section Multi-Angle Measuring Ruler: You will get a 12-layer ruler and a perforated head. It can be divided into 2 6-layer rulers. You can combine or split it. Meet your different needs. Each angle ruler has a 12-section ruler and a metal knob with hole saw for tile positioning. You can adjust the 12 metal knobs to get exactly the shape you want, and then find the right place to drill the hole. Precise Multi-Tool: This ruler is engraved with centimeters or inches for measuring on both sides. Can be adjusted according to your needs. Accurate measurement and clarity. Each ruler measures 12 cm. These scale units will not fade or wear off. Various Applications: The flexible double hole angle ruler is suitable for measuring tasks such as creating targets, bows, lead cuts and more for working