DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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Circumference Rulers
Determine the circumference of a circle without calculations. These rulers have an inch scale for measuring diameter on the top edge and the corresponding circumference scale on the bottom edge. They’re also known as tinners' rules. All are flexible for measuring slightly curved surfaces and have wear-resistant etched markings.
Circumference | |||||||||||
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| Lg. | Front Graduation Marks (Numeric Increments) | Measured | Graduation Marks (Numeric Increments) | Wd. | Thick. | Flexibility | Color | Graduation Mark Style | Hole Dia. | Each | |
Inch—Left to Right Reading Direction | |||||||||||
Steel | |||||||||||
| 36" | 16ths (1") | 113" | 8ths (1") | 1 1/4" | 1/16" | Flexible | Silver | Etched | 7/32" | 000000 | 0000000 |
| 48" | 16ths (1") | 150" | 8ths (1") | 1 1/4" | 1/16" | Flexible | Silver | Etched | 7/32" | 000000 | 000000 |