Tungsten carbide twist drill bits
Changzhou Center Tools Co., Ltd. [China] 
Cutting tool--Carbide long shank ball head mill 1)High quality ,competitive price 2) High precision 3) the best material
Cutting tool--Carbide long shank ball head mill
Application: this drill is suitable for High-speed and long life drilling,and is useful in dry-process.
Best material: we use the import material, AF,SANDVIK,KENNA,CB,etc.
Quality:all our manufactured parts are inspected by advanced zoller mearsurement.
Facility:we have the world lastest 5-axis tools grinding machines.
Flexbility:non-standard sizes are accepted.
The specification is below:
| Order No. | Flute dia d | Flute length ( l ) | Shank dia (D) | Total length(L) |
| 3.0×16×3D×48L | 5.0 | 44 | 5.0 | 82 |
| 3.5×20×4D×52L | 6.0 | 44 | 6.0 | 82 |
| 4.0×22×4D×54L | 7.0 | 53 | 7.0 | 91 |
| 4.5×24×6D×68L | 8.0 | 53 | 8.0 | 91 |
| 5.0×26×6D×70L | 9.0 | 61 | 9.0 | 103 |
| 5.5×28×6D×72L | 10.0 | 61 | 10.0 | 103 |
| 6.0×28×6D×72L | 11.0 | 71 | 11.0 | 118 |
| 6.5×31×8D×75L | 12.0 | 71 | 12.0 | 118 |
| 7.0×34×8D×78L | 13.0 | 77 | 13.0 | 124 |
| 7.5×34×8D×78L | 14.0 | 77 | 14.0 | 124 |
| 8.0×37×8D×81L | 15.0 | 83 | 15.0 | 133 |
| 8.5×37×10D×87L | 16.0 | 83 | 16.0 | 133 |
| 9.0×40×10D×90L | 17.0 | 93 | 17.0 | 143 |
| 9.5×40×10D×90L | 18.0 | 93 | 18.0 | 143 |
| 10.0×43×10D×93L | 19.0 | 101 | 19.0 | 153 |
| 11.0×47×12D×104L | 20.0 | 101 | 20.0 | 153 |
Tungsten carbide twist drill bits
