D=21,0x330+10 mm ground h5, Tk=7,4-1,00/d=1,50±0,25 mm TC-Rod with 2 twisted ducts 40° K-40UF Helix: 78,62 +1,38/-1,41 mm
Technical attributes
| Technical Details | Value |
| Diameter | 21.000 |
| Degree | 40 ° |
| Carbide grade | K-40UF |
| Length | 330 |
| Pitch circle | 7.10 |
| Coolant hole | 1.50 |
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