1. Diameter of the drum: From 4mm to 45 mm
2. Total Length:70 mm or according to customers' requirement
3. Diamond grit:40/50/80 or according to customers' requirement
4.mainly used for precise drilling holes in the block of glass, fiberglass, ceramic, marble and other composite materials.
5.Specification:
| Dia.(mm) |
Shank(mm) |
Total Length(mm) |
| 4 |
6 |
45 |
| 5 |
6 |
45 |
| 6 |
6 |
45 |
| 8 |
6 |
45 |
| 10 |
6 |
45 |
| 12 |
6 |
45/61 |
| 14 |
6.5 |
61 |
| 16 |
6.5 |
61 |
| 18 |
6.5 |
61 |
| 20 |
6.5 |
61 |
| 22 |
8 |
61 |
| 45 |
10 |
61 |
