| Range (Lower/Upper) | Graduation (Lower/Upper) | Accuracy | Jaw Length | Code No. | |
|---|---|---|---|---|---|
| 0-12" / 0-300mm | .001" / 0.02mm | ± .0015" | 90mm | 313-12-3 | |
| 0-20" / 0-500mm | .001" / 0.02mm | ± .0020" | 200mm | 313-20-3 | |
| 0-30" / 0-750mm | .001" / 0.02mm | ± .0020" | 200mm | 313-30-3 | |
| 0-40" / 0-1000mm | .001" / 0.02mm | ± .0030" | 200mm | 313-40-3 |