| Features: |
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1. Special S type ball nose design has better surface finish after processing, and is suitable for 3D milling of steel material hardness up to HRc55.
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2. Central coolant design.
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| Working Materials Hardness Level: Good at steels with hardness up to HRc55. E.g. S45C, P20, NAK80, SKD61(HRc52) etc. |
Applicable Milling Methods:  Finishing  Semi-finishing  Roughing |
| Applicable Coolant Ways: Emulsion Machining Oil Machining |
| Type No. | Diameter | Flute Length | Neck Dia. | O.A.L. | Thread Size | Spanner Type No. |
|---|---|---|---|---|---|---|
| D1 | L1 | D2 | L2 | M | ||
| X-UBO0804 | R4.0 | 8.0 | 7.8 | 12.1 | M5-3P | K08 |
| X-UBO1004 | R5.0 | 10.0 | 9.8 | 16.1 | M7-3P | K10 |
| X-UBO1204 | R6.0 | 12.0 | 11.7 | 20.3 | M8-3P | K12 |
| X-UBO1604 | R8.0 | 16.0 | 15.6 | 25.7 | M10-3P | K16 |