| Twin Discs and bearings for SE 9 / SE 10 / Corobox SE 11 / SC 1-M / SC 2-M | Part No. / Order No. |
| Supporting discs N | 117-038 230 |
| Supporling discs L(Laser speed recording)Not for SC 1-M / 5C 2-M | 117-038 239 |
| Supporting discs R(without reflector) Reflector | 117-038 235 |
Twin Discs
