Professional Carpenter Tool: The 180mm metric metal joiner's square is precisely graduated, with the angle and scale marked on the front and back. It has an absolute angle of 90 degrees, precise angles and lengths, with accuracy that meets industry regulations. The scale lines and numbers are laser engraved and are not easy to wear. Multifunction Carpenter Square: The carpenter square has 5 in 1 functionality: ruler set, angle profile, caliper, protractor and drilling aid, making it superb for 10 uses such as measuring angles, checking squares , adjust saw guides, sawing, drawing circles, drawing board marks, leveling, finding roof slopes and much more. Carpenter's Square Set: in addition to the metal carpenter's square, it includes a construction pencil and a deep hole marker, and 18 refills. This DIY measuring and drawing tool set is a beautiful wooden tool gift set, perfect for professionals and DIY enthusiasts alike, a must for any toolbox. Practical carpenter's square: the metal carpenter's square set helps you get rid of tedious measurements, no need to carry a lot of tools, just this carpenter's ruler helps you get quick measurements and mark angles from 0 to 90 degree, 3-15mm different holes allows you to finish the drilling work, just need a nail to help you draw circles of different sizes. Durable Carpenter's Square: The metal carpenter's ruler is made of high-quality aluminum with a baked black enamel finish to improve oxidation resistance, making it more durable and wear-resistant. Please do not hesitate to contact us if you have any questions or problems with your daily use of carpenter's ruler.