Features:
1.Used for arc-shaped inside groove measurements
2.Zero-setting at any position,convenient for relative and absolute measure conversion
3.mm/inch conversion at any position
Specifications :
| Measuring Range | Order No. | Resolution | Limit Error | L | a | b | c | d | e | Φ |
| 24-150mm | 1130-150A | 0.01mm | ±0.05mm | 250 | 30 | 3 | 7 | 16 | 5 | 2 |
| 35-150mm | 1130-150B | 0.01mm | ±0.05mm | 250 | 60 | 3 | 11.5 | 16 | 6 | 2 |
| 50-150mm | 1130-150C | 0.01mm | ±0.06mm | 260 | 90 | 4 | 17 | 20 | 8 | 3 |
| 25-200mm | 1130-200A | 0.01mm | ±0.05mm | 310 | 40 | 3 | 7.5 | 16 | 5 | 2 |
| 40-200mm | 1130-200B | 0.01mm | ±0.05mm | 310 | 70 | 3 | 13 | 16 | 7 | 3 |
| 60-200mm | 1130-200C | 0.01mm | ±0.05mm | 310 | 100 | 3 | 20 | 20 | 10 | 2 |
| 30-300mm | 1130-300A | 0.01mm | ±0.07mm | 410 | 50 | 3 | 10 | 16 | 5 | 3 |
| 50-300mm | 1130-300B | 0.01mm | ±0.07mm | 410 | 80 | 3 | 17 | 16 | 8 | 3 |
| 60-300mm | 1130-300C | 0.01mm | ±0.07mm | 410 | 110 | 3 | 20 | 20 | 10 | 3 |
| 40-500mm | 1130-500A | 0.01mm | ±0.07mm | 680 | 90 | 3 | 15 | 24 | 5 | 3 |
| 60-500mm | 1130-500B | 0.01mm | ±0.08mm | 680 | 120 | 3 | 20 | 24 | 10 | 3 |
| 80-500mm | 1130-500C | 0.01mm | ±0.08mm | 680 | 150 | 3 | 24 | 24 | 16 | 3 |
