High quality: 7 inch aluminum alloy carpenter square, solid aluminum alloy construction for durability. Multi-function: use a square rafter tool for angle measurements and a guide saw for cutting. Protractors can be used with square saws for cross cutting or diagonal cutting. The combination square can very quickly measure or mark an angle from 0 to 90 degrees, and as a saw guide for 45 and 90 cuts. Easy to use: the measurement of angles and inclinations, adjusting to the required angle, adjusting the central lever, tightening the positioning of the nut to obtain precise positioning, a useful function during repetitive cuts, comes with a conversion table, which is easy to use. Clear and precise scale: Speed Carpenter's Square are professionally calibrated before production. The scale lines are laser printed, the quick square finish features low glare and a protective powder coating, which is clearly visible, easy to read and won't wear off for a long time. More 'applications: the adjustable square as a protractor, miter, metal carpenter's square, plotting saw guide, framing square and ruler, it can be used to measure angles, check the saw guide, adjust the saw , draw circles, mark boards for tearing , level, find roof slope and so on. Number of pieces delivered: 1 Color: Black lucky meet