Core barrel are built-in with radial tools. Generally used to cut low fractured medium hard rock formation and partially fragmented medium hard rock formations.
1. Core Barrel with Bullet teeth
Main application: gravel, boulder and medium mantle rock
2. Weak wreathing tube bit
Main application: boulders,strength up to medium rock.
3. Grabing style core barrel
Main application: grvel,boulders
4. Double walled core barrel
Main application: Backfil,strength up to medium rock
5. Double walled core barrel
Main application: rock hardness above 40Mpa sandstone,rock and Granite.
