Mainly used in Star and Citizen(Cincom) swiss automatic lathe.
Especially common using in Star SB-16,RNC16,SA-16

| d | Guide diameter(mm) |
| D | Bigger Outside Dia.(mm) |
| L | Length(mm) |
| K | Angle |
| Drawing | PG391F(TD20R) |

Basic Dimension
| Part No. | d | D | L | K(Degree) | Thread | DIN Code | US Code | Swiss Code |
| PG391F | 22 | 29 | 68 | 32° | M22*1 | 3455E | TD20R | F391(39.001) |
Common Options & Configurations
| REC.MAX BORE | Bore Material | |||||
| Round | Hex | Square | ||||
| 16 | 12.5 | 10 | Carbide [C] | Steel[S] | PVC[P] | Copper[CO] |
| Other Option | ||||||
| High Precision[HP] Extended carbide Lined[CL] Withou Slot | ||||||

Pls check Part No written method as per...

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