Aluminum Alloy Multi-Angle Jig Tool: The angle finder is made of aluminum alloy. Will not bend or break easily, rust It is more durable and stronger than plastic. 1 inch thick aluminum alloy material. 12-section multi-angle measuring ruler: You will receive a 12-ply ruler and a perforated head. It can be divided into 2 6-ply rulers. You can combine it or divide it. Meet your different needs. Each angle ruler has a 12-piece ruler and a metal knob with a tile positioning hole saw, you can adjust the 12 metal knobs to create exactly the shape you want, then find the right place to drill the hole . Precise Multi-Tool: This ruler is engraved on both sides with centimeters or inches to measure. Can be adjusted according to your needs. Accurate measurement and clarity. Each ruler measures 12 cm. These scale units will not fade or wear out. Various Applications: Flexible double hole angle ruler is suitable for measuring jobs such as creating bullseye, arches, cuts plumbers, and more for woodworking, brick, tile, wood, glass, stone, laminate, architectural and engineering projects, and more. It's the perfect tool for carpenters, masons, craftsmen, DIY enthusiasts, etc. Easy to use: The angle measuring tool is very easy to use. Just place it on your workspace, put the measuring and layout tools into the shape you made, and tighten the screws. The multi-angle ruler can be placed in any position and fixed in seconds to create your own patterns.