| Calibrated Device | (1) True square, polygons (2) Indexing table (3) Polygon & indexing table (cross calibration) |
|---|---|
| Range | (1) 3 faces to 72 faces (120° to 5°) (2) 0° to 360° (3) 3 faces to 72 faces (120° to 5°) |
| Uncertainty | (1) True squared polygons: 0.15" (2) Index table: 0.20" (3) Polygons & index table (cross calibration): 0.04" |
