Thread Gauge Feelers Size 8. Ball diameter 1.650 mm. Orientation locking pin parallel

Technical data
| Ball diameter | 1.650 mm |
| Ball constant | 12.00 mm |
| Number of balls | 2 |
| Orientation locking pin | Parallel |
| Locking pin Ø | 1 mm |
| Ball material | Ruby |
| Ball class | Grade |