Cylindrical Squares
- Use in surface plates as 90°reference angle.
- Used for checking squares, height gages and many instruments.
- The squares are hardened and the ends are lapped to 90 angular accuracy with the cylinders as follows:6"square to ±0.0001" and 12" square to ±0.00015"
| Item | Diameter | Height | Weight |
| EG02-0263 | 3" | 6" | 15lbs |
| EG02-0264 | 4" | 12" | 44lbs |

