rotring 802021 Throttling Triangular Reduction Scale Mechanical Design T2 Ruler  (Multicolor)

FEATURES: Scales – 1 : 10, 1 : 20, 1 : 25, 1 : 30, 1 : 40, 1 : 50. Dimension Markings Are In Metrics For Ease Of Use. Contents page and handy conversion tables included Sturdy case bound books have ribbon page marker and sewn, tamper-resistant pages Ideal for Plan Drawers, Architects, Workshop, Toolbox, Home Crafts, Hobbyists, Modellers, Graphic Designers, triangular scale(T2) is a stylish rule suitable for architects. High-Quality Stable Plastic Ruler. Precision Divisions Are Numbered Both Ways