| Standard for angle measurement |
| Accuracy ±10" |
| Code | Blocks per set | Angle | Step | Quantity |
| 4109-7A | 7 | 15°10' | 1 | |
| 30°20' | 1 | |||
| 45°30' | 1 | |||
| 50° | 1 | |||
| 60°40' | 1 | |||
| 75°50' | 1 | |||
| 90°/90°/90°/90° | 1 | |||
| 4109-36A | 36 | 10° - 20° | 1° | 11 |
| 30° - 70° | 10° | 5 | ||
| 45° | 1 | |||
| 15°10' - 15°50' | 5 | |||
| 15°1' - 15°9' | 10' | 9 | ||
| 10°00'30" | 1' | 1 | ||
| 80°/81°/100°/ 99° | 1 | |||
| 89°10'/89°20'/90°50'/ 90°40' | 1 | |||
| 89°30'/ 89°40'/90°30'/90°20' | 1 | |||
| 90°/90°/90°/90° | 1 |
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