Both “for Solid type” and “for Composite type”
- AF209
- AF308
- AF806
Only “for Solid type”
- AF505
- AF310
BLANKS FOR ROUND TOOLS
Blanks for PCB drill
Blanks for PCB drill are unmatched by the competition
We provide the world's highest quality ultra-fine grain blanks by consistently managing the process from tungsten refining to cemented carbide sintering technology within the Sumitomo Electric Group.
Grades
We manufacture two types, solid carbide type and carbide tipped composite type
Size Availability
Dimensions other than those shown in the table below are available.
Additional dimensions and centerless processing are available upon request.
Solid type
Unit : (㎜)
| ΦD | L |
|---|---|
| 2.15±0.02 | 32.0 |
| 3.25±0.02 | 39.0 |
Composite type
Unit : (㎜)
| ΦD | L |
|---|---|
| 1.0 ～ 1.8±0.02 | 330 |