Rules and Straight Edges
From DT Online
Rules or Rulers are used for taking or transferring measurements and a variety of designs are available for specific purposes. Some Rules are used also as a Straight Edge with which to mark lines or test for straightness.
| Desk Ruler | B |  |
| 'Steel Rule | B |  |
| Safety Rule | B |  |
| Tape Measure (cloth tape) | B |  |
| Tape Measure (steel tape) | B |  |
| Scale Rule | B |  |
| Folding Rule | B |  |