core barrel equipped with roller cutter bits Generally used to cut very hard fractured, hard rock formation with compressive strength up to (200 MPa)

Features: Kelly box: 130-150-200 - other available upon request Teeth: Single roller bit c/w bearing and carbide insert IADC 637 or IADC 737 - diam. 8.5 inch.

Main application strong rock (more than 100 MPa) suitable in compact rock

Main application: core barrel equipped with roller cutter bits Generally used to cut very hard fractured, hard rock formation with compressive strength up to (200 MPa).

Features: Kelly box: 130-150-200 - other available upon request Teeth: Single roller bit c/w bearing and carbide insert IADC 637 or IADC 737 - diam. 8.5 inch. Cutting ring with tungsten roller bits welded into the base ring of core barrel. Wear protection: hard facing (standard) or wear stripe (optional)