
| 3 | 1 | 0 | 1 | H7 – 0850 | |||
| A | |||||||
| 1 | 2 | 3 | 4 | 5 | 6 |
Type Shank type
| Code | Description | Code | Description | |
| 3 | Reamer | 1 | Straight shank | |
| 2 | Straight shank DIN10 | |||
| 5 | Straight shank DIN 6535 HA | |||
| 9 | Morse taper shank | |||
| B | 1 | 2 | ||
| Coolant supply | Flute | |||
| Code | Description | Code | Description | |
| 0 | External | 1 | Right-hand twist | |
| 1 | Internal | 2 | Straight flute | |
| 3 | Left-hand twist | |||
| 3 | 4 | |||
| C | Classe de tolérance | Diameter [mm] |
| Code | Description | Code | Description | |||
| 0850 | 8,5 | |||||
| The tolerance class of the | ||||||
| H7 | reamed hole is equivalent to H7 | ... |
(GB/T1800-1804) 5 6
a
a Reaming