Table 2 Parameters of the drill bit
Description | Value |
|---|---|
Height of the extruding part he/mm | 7.4 |
Width of the bit blade w/mm | 10 |
Helix angle of the extruding part α1/(°) | 75 |
Rake angle of the blade α2/(°) | 90 |
Number of the blades no | 4 |
Description | Value |
|---|---|
Height of the extruding part he/mm | 7.4 |
Width of the bit blade w/mm | 10 |
Helix angle of the extruding part α1/(°) | 75 |
Rake angle of the blade α2/(°) | 90 |
Number of the blades no | 4 |