High Quality: The 7 Inch Rafter Square is made of Aluminum Alloy, solid aluminum alloy construction for durability.Multifunction: Rafter square tool is used for angle measurements and a saw guide for cutting. Protractors can be used with square saws for cross cutting or diagonal cutting. The combination square can do a very quickly measuring or marking angle from 0 to 90 degrees, and as a saw guide for 45° and 90° cuts.Easy to Use: Rafters Square Set can be allowing the measurement of angles and pitches, adjust to the required angel, adjustable the middle lever, tighten the nut positioning to achieve precise positioning, a useful feature when making repetitive cuts, comes with a conversion table, which is easy to use.Accurate Clear Scale: The carpenters squares scales are calibrated by professionals before production. The scales lines are laser-printed, the quick square finishing features low glare and protective powder coated, which is clearly visible, easy to read, and will not wear out throng a long time.More Application : The Adjustable Set Square as a protractor, miter, line scriber saw guide, framing square and a ruler, it can be used to measuring angles, check for aquare, a saw guide, adjust sawa, drawing circles, mark boards for ripping, leveling, finding roof pitch and so on. Product Description Multifunction Use Protractors can be used with square saws for cross cutting or diagonal cutting. The combination square can do a very quickly measuring or marking angle from 0 to 90 degrees, and as a saw guide for 45° and 90° cuts. measurement of angles and pitches, adjust to the required angel, adjustable the middle lever, tighten the nut positioning to achieve precise positioning, a useful feature when making repetitive cuts, comes with a conversion table Gohelper 7inch Roofing Square Gohelper Roofing Squaremade of Aluminum Alloy, can be used with square saws for cross cutting or diagonal cutting. comes with a conversion table, calibrated by professionals before production. The Adjustable Set Square as a protractor, miter, line scriber saw guide, framing square and a ruler, it can be used to measuring angles, check for aquare, a saw guide, adjust sawa, drawing circles, mark boards for ripping, leveling, finding roof pitch and so on. Thickness: 0.20inch/5mm 7.67inch/195mm (short sides) 10.83inch/275mm (long side) Weight: 320 grams Material: Aluminum T-Edge The triangle carpenter square can do a very quickly trace and guide a saw on the edge of a board. Quickly Measuring The carpenter square can do a very quickly measuring or marking angle from 0 to 90 degrees with a simple operation. Line Scriber Draw lines parallel to the edge, the Roofing Square can do a very quickly draw a straight line with a simple operation. Guide For Miter cut The rafter square can be used as a guide for cross-cutting lumber, They both work accurately at an angle 45 degrees. Material Aluminum alloys Aluminum alloys Aluminum alloys Aluminum alloys Aluminum alloys Aluminum alloys Characteristic Accurate clear scale,Rustproof and durable High precision,Easy to operate Quick square,High hardness Precise positioning,Sturdy and durable High precision,High Quality High precision,High Quality Easy to use