廣泛使用的球型銑刀
切削波紋平衡性佳
| 記號 | 球半徑 | 外徑 | 刃長 | 全長 | 角徑 |
| RE0.75 | 0.75 | 1.5 | 3 | 55 | 6 |
| RE1 | 1 | 2 | 4 | 55 | 6 |
| RE1.25 | 1.25 | 2.5 | 5 | 60 | 6 |
| RE1.5 | 1.5 | 3 | 6 | 60 | 6 |
| RE2 | 2 | 4 | 8 | 70 | 6 |
| RE2.5 | 2.5 | 5 | 10 | 80 | 6 |
| RE3 | 3 | 6 | 12 | 90 | 6 |
| RE3.5 | 3.5 | 7 | 14 | 90 | 6 |
| RE4 | 4 | 8 | 16 | 100 | 8 |
| RE4.5 | 4.5 | 9 | 18 | 100 | 8 |
| RE5 | 5 | 10 | 20 | 100 | 10 |
| RE5.5 | 5.5 | 11 | 22 | 100 | 10 |
| RE6 | 6 | 12 | 24 | 110 | 12 |
| RE6.5 | 6.5 | 13 | 26 | 110 | 12 |
| RE7 | 7 | 14 | 28 | 110 | 12 |
| RE7.5 | 7.5 | 15 | 30 | 110 | 12 |
| RE8 | 8 | 16 | 32 | 140 | 16 |
| RE10 | 10 | 20 | 40 | 160 | 20 |
| RE12.5 | 12.5 | 25 | 50 | 180 | 25 |
| RE15 | 15 | 30 | 60 | 180 | 25 |
| RE16 | 16 | 32 | 60 | 200 | 32 |
| RE20 | 20 | 40 | 65 | 220 | 32 |
