| ◆ | Manufactured from stainless steel for high measurement accuracy |
| ◆ | Upgraded indicator core for two-way shockproof performance |
| ◆ | Equipped with outer ring locking device |
| ◆ | For measurement of inner hole, outer circle, and depth |
| ◆ | Comes in a high quality ABS plastic box |
| ◆ | Meets or exceeds DIN 862 |
