2.5mm thick aluminum alloy ruler: this multi-angle measuring ruler is made of premium 5mm aluminum alloy, won't break when bending or rusting, more durable and more sturdy than the plastic ruler. Say no to your flimsy layout tool. Wide Applications: The universal layout tool is handy for creating bull's eyes, arches, plumb cuts and any project you can think of, works great on the carpentry, brick, tile, wood, glass, stone, laminate, construction and engineering projects and much more. It is a perfect jig tool for carpentry, masons, craftsmen, handyman, DIY Easy to use: 1. Find the hole position, tighten all the knobs. 2. Move the ruler over the tile and mark the hole. Drill a hole where you marked. 4. Place the tile on the wall. Are you looking for an easy to use universal angle jig? Our angle measuring ruler will be a good choice for you. Metric and Imperial Units: This allows you to take measurements in inches or centimeters. Thanks to the laser engraved inscriptions, you will be able to read the measurements clearly for years. They won't smudge, fade or disappear. Portable: Small size and easy to carry, measuring is very convenient, just fold it up and put it in the bag.