Material: Carpenter square is made of premium aluminum alloy, high hardness, high toughness, wear-resistant, anti-oxidation and durable. About more than 10 multi-function: the drilling jig is square, protractor, dovetail template, circle hole, parallel line, vertical line, drill positioning, T-shaped tip, 45/90 angle ruler. For example. custom colors for labels. Measurement and transfer of angular dimensions. 45 degree and 90 degree angle stop/marker gauge for parallel lines. Drilling sizes with the drill guide.Wide range of applications: the bevel joinery is suitable for processing three-dimensional parts, e.g. beams, squared timber, square and tubular, hollow and solid pipes, aluminum alloy, wood, stainless steel, marble, etc., etc. It is a great gift for a carpenter or plumber. The precision of measurement: the woodworking measuring ruler itself Clear reading, easy to read and elegant in appearance. You don't have to turn around when measuring. Simply drag to mark left and right angles of 45 degrees or 90 degrees.Functions: for three-dimensional marking - measurement and transfer of angular dimensions - stop at 45 and 90 - marking dimension for parallel lines - determination of the drill size with the drill template. He is more accurate than other rulers.