set square 45/113 transparent

Set square 45/113, made from transparent polystyrene, suitable for drawing and measuring of straight lines, verticals, angles, parallel lines, and more. The scales are made using precise screen printing technology and resistant to wear and tear during normal use. Millimetre scale on hypotenuse 7cm from the centre to both sides, each centimetre identified with a number. Protractor scale 0-180 degrees on legs and arc protractor scale 0-90 degrees in the centre of hypotenuse to both sides. Degree scale with identification of each tenth degree with a number. The numbers of the arc protractor scale have yellow background. Transverse millimetre scales perpendicular to hypotenuse allow drawing of parallel lines with identification of each fifth millimetre with a number. Scales accuracy 0.2% of length. The set square is designed for drawing and technical drafting in schools and office. Packed in polyethylene bag with EURO hanger.