
1 Cleaning 2 Initial Tightening 3 Final Tightening
| Remove dirt and chips with air blow | Tighten by hand until the head and | Tighten slowly with torque control |
| from the connecting thread and face | the shank holder faces touch. | spanner wrench or special spanner |
of modular head and MSN/MGN shank wrench for S-Head and confirm that holder. there is no gap.
Attention: Final tightening without initial tightening can cause connecting thread damage.
NOTE 1. Use the spanner wrenches that designed specifically for S-Head or torque control type. Torque control spanner wrench
2. Please gently apply pressure on wrench. Spanner wrench for S-Head (DS type) 3. Please confirm that there is no gap between MSN/MGN shank holder and Modular head.
| Thread | Tightening torque | Spannersize for S-Head | Thread | Tightening torque | Spannersize for S-Head | Cat No.of spanner wrench for S-Head |
| M6 | 8.0N·m | 8 | M8 | 10~11N·m | 14 | DS-14 |
| M8 | 16N·m | 10,12 | M10 | 10~16N·m | 17 | DS-17 |
| M10 | 16N·m | 14,15 | M12 | 15~20N·m | 22 | DS-22 |
| M12 | 20N·m | 17 | M16 | 20~25N·m | 27 | DS-27 |
| M16 | 25N·m | 22,26 |
※Modular heads are supplied without spanner wrench.