Part No.

Description

Formation

KDR-1

Roller bit with 41pcs conical bits

For 110-180Mpa

KDR-2

Roller bit with 45pcs conical bits

For 110-180Mpa

KDR-3

Roller bit with 49pcs conical bits

For 110-180Mpa

KDR-O

Roller bit with 49pcs scoop bits with grease pressure compensator

For 80-110Mpa

KDR-H

Roller bit with 49pcs conical bits and holder

For 110-180Mpa