Details
Tinner's Circumference Rule
- Standard rule for tinners and other sheet metal workers
- Tempered medium-weight steel
- Black markings for easy reading
- One side upper edge marked inches to 1/16ths
- Reverse side has formulas for calculating circumference, diameter, area
- Hole in one end for hanging
- Lower edge marked up to 150 circumference inches to 1/8ths