| Handle structure | Blade diameter d | Blade length L1 | Total length L | Remarks |
|---|---|---|---|---|
| Straight handle | 3~12 | 30~80 | 60~130 |
Mainly used in aviation and aerospace industry processing centers, robots and pneumatic drills to make holes,suitable for processing aluminum alloys,steel parts, stainless steel,titanium alloys and other materials, with higher hole quality and precision.