整體硬質(zhì)合金定心鉆
頂角(α) | 刃徑 | 刃長 | 總長 |
90°/120° | 3.0 | 10 | 45 |
90°/120° | 4.0 | 12 | 50 |
90°/120° | 5.0 | 15 | 50 |
90°/120° | 6.0 | 18 | 50 |
90°/120。 | 8.0 | 20 | 60 |
90°/120° | 10.0 | 24 | 70 |
90°/120° | 12.0 | 24 | 70 |
90°/120° | 16.0 | 26 | 80 |
90°/120° | 20.0 | 35 | 100 |