Parallel Rules
Completely transparent clear optical finish allows for exact plotting. Each 15″ (38 cm) blade features large, easy-to-grip handles. Precision molded for accurate straight line plotting
Quick Guide (pdf)
![Davis 15" Parallel Rules [061]](https://www.sailrepairworks.com/wp-content/uploads/2026/10/davis-15-parallel-rules-061.webp)
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