Identification No.

Torque(ton.m)

O.D.(mm)

Section

Drilling Depth (m)

KD 36/508/4/60

36

508

4

60

KD 36/470/*/27~72

36

470

3/4

27~28

KD 28/394/*/24~65

28

394

3/4

24~65

KD 25/440/*/36~50

25

440

3/4

36/50

KD 22/406/*/36

22

406

3/4

36/50

KD 18/377/*/36~50

18

377

3/4

36/50