Rapid Rules Scale Ruler
- Rapid Rules are an ingeniously simple improvement over the flat and triangle scales.
- It's unique shape instantly identifies the scale edge.
- Simply rotate the scale rod to locate the needed scale.
- Once located, it is retained...ready-to-use, every time you pick it up.
- All six scales read from left-to-right and read only one scale at a time
- Available in 15cm and 30cm rulers
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