| Handle structure | Blade diameter d | Blade length L1 | Total length L | Remarks |
|---|---|---|---|---|
| Straight handle | 2~20 | 10~80 | 60~330 |
Mainly used in aviation and aerospace industry processing centers, robots and air drills to make holes, suitable
for processing aluminum alloys, steel parts, stainless steel,titanium alloys and other materials.