

![]()
| Unit:mm | ||
|---|---|---|
| Diameter | Full length | Working length |
| 22.0 | 400 | 115 |
| 26.0 | 400 | 152 |
| 30.0 | 400 | 190 |
| ※40.0 | 400 | 163 |
| ※40.0 | 400 | 193 |
Precautions on Drill Bits with Stopper
●Stop drilling as soon as the stopper reaches the surface of the base material.
●Do not apply excessive pressure as the drilling depth might get deeper.


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| Unit:mm | ||
|---|---|---|
| Diameter | Full length | Working length |
| 15.0 | 210 | 58 |
| 17.0 | 210 | 65 |
| 19.0 | 210 | 72 |
Precautions on Drill Bits with Stopper
●Stop drilling as soon as the stopper reaches the surface of the base material.
●Do not apply excessive pressure as the drilling depth might get deeper.