- Replacement Blades for Model # 30-485, 30-537, 33-212, 33-512
features
- Top edge: Major scale numbered in consecutive feet
- Minor scale numbered in consecutive inches after the first foot
- Bottom edge: Numbered in consecutive inches
- Graduated in 32nds of an inch for the first foot
- Remainder graduated in 16ths of an inch
| Blade Width | 0.5 in |
| Blade Length | 12 ft |
| Graduation(s) | 16ths, 32nds |
| For Model No. | 30-485, 30-537, 33-212, 33-512 |
| Type | Tape Blade |
| Weight | 0.15 LB |

