Detailled description
The reduction rule Wonday, your essential drawing companion:
- Surveying model geometer II
- measures 30 cm and is triangular. It has 6 scales : 1 : 500 - 1000 - 1250 - 1500 - 2000 - 2500
- includes grooves with color code
- its high-quality synthetic material gives it great resistance
- its graduation is precise.