Staedtler 98-DIN BK Scale Rule, 30 cm

• A 30 cm triangular scale ruler designed for professionals and students of architecture and engineering.
• The 300 mm trihedral scale is made from white polystyrene.
• Hot-stamping technology is used to print the scales 1:2.5, 1:5, 1:10, 1:20, 1:50 and 1:100.
• Scale accuracy of 0.2 per cent of the length.
• To make them easier to distinguish, the sides are marked with coloured stripes.
• This makes the triedric scale particularly well-suited for use in geodesy.
• Marked in cm and mm.
• Length: 30 mm.

Brand: Koh-i-noor.