KARBO drill bits with round tungsten pins
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- Very abrasive rock, unfavourable drilling conditions
- Slow drilling progress
- Or use of standard drill bits
![Stiftformen DE_Seite_1_Bild_0004](https://www.karbo.de/wp-content/uploads/2023/01/Stiftformen-DE_Seite_1_Bild_0004.jpg)
KARBO drill bits with ballistic tungsten pins
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- Universal use: soft to medium-hard rock
- Fast drilling progress
- Hard rock (if compact and not too abrasive)
![Stiftformen DE_Seite_1_Bild_0003](https://www.karbo.de/wp-content/uploads/2023/01/Stiftformen-DE_Seite_1_Bild_0003.jpg)
KARBO drill bits with semi-ballistic pins
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- Medium shape between round and ballistic
- Hard, abrasive rock
- Medium drilling progress
![Stiftformen DE_Seite_1_Bild_0005](https://www.karbo.de/wp-content/uploads/2023/01/Stiftformen-DE_Seite_1_Bild_0005.jpg)
KARBO core bits with conical tungsten pins
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- Soft, compact rock (limestone – no quartz)
- Fast drilling progress
- Possibly without rubbing
![Stiftformen DE_Seite_1_Bild_0006](https://www.karbo.de/wp-content/uploads/2023/01/Stiftformen-DE_Seite_1_Bild_0006.jpg)
KARBO drill bits with combined tungsten pins
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- Round, for example
- Or semi-ballistic pins on the outside and ballistic pins on the inside
- Hard, abrasive rock
- Possibly without rubbing
![Stiftformen DE_Seite_1_Bild_0002](https://www.karbo.de/wp-content/uploads/2023/01/Stiftformen-DE_Seite_1_Bild_0002.jpg)
Bit head designs
Depending on the rock you are drilling through, you can choose between 5 bit head designs. Simply let us know the desired shape when you send us your inquiry or order. If you have questions, we gladly help you.
High-speed drill bit
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- Soft to medium-hard rock
![kd-01](https://www.karbo.de/wp-content/uploads/2023/01/kd-01.jpg)
Standard
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- For fractured rock – poor drilling conditions
![kd_02](https://www.karbo.de/wp-content/uploads/2023/01/kd_02.jpg)
Concave
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- Hard to medium-hard rock
- Deep drill holes, low course
![kd_03](https://www.karbo.de/wp-content/uploads/2023/01/kd_03.jpg)
Convex
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- soft – medium-hard rock
![kd_04](https://www.karbo.de/wp-content/uploads/2023/01/kd_04.jpg)
Karnebogen GmbH
Hagener Straße 3
58566 Kierspe-Vollme
Telephone: +49 2359 / 7344
Fax: +49 2359 / 4566
E-Mail: post@karbo.de
Business hours
Monday – Thursday
07:00 – 12:00 and 13:00 – 16:00
Friday
07:00 – 12:30