[latest version] With the 12-piece angle tool, you can adjust the drilling position on B. Mark the tiles precisely. It is a built-in hole measuring and positioning tool. This measuring ruler folds up easily and takes up little space and is easily transported to any job site. It is very suitable for measuring the surface of brick, paper, stone, ceramic tile, wood and other materials. [Material and design improvement] The ruler of multi-function gauge is made of high quality aluminum alloy, which is very wear-resistant. Equipped with metal buttons. They are stronger than plastic buttons and therefore more durable. The edges are rounded and smooth, without burrs, which can prevent injuries. No complicated processing. [Precise measurement] Our multi-angle measuring ruler is an ideal instrument for measuring angles accurately. There are inches and centimeters on the scale, all laser engraving will not fade or wear off, even if you use the sliding ruler for a long time, keep it clear and easy to read for a accurate measurement. [Easy to use] Simply place the angle measuring tool on your work area, drag the angle measuring tool into the shape you want, and tighten the screws. The multi-angle ruler can be placed in any position and attached in seconds to create your own template. In addition, the screws provided are large and can be replaced with one hand, which makes it very easy to use. [Wide Application] The 12-sided multi-angle ruler is a tool for universal multi-angle measure that provides brick, wood, tile, floor, roof and metal objects. You can choose a metal square as a gift for builders, tilers, carpenters, handymen, roofers, carpenters, architects, handymen, etc.