17-1/2"

S223

5

19mm

Ultra   soft with stick layers and low compressive strength sand, mud, clay, marl

12-1/4"

S222

5

19mm

12-1/4"

M223

4

19mm

12-1/4"

M223

5

19mm

9-7/8"

M223

5

19mm

8-1/2"

M223

5

19mm

8-1/2"

S223

5

19mm

12-1/4"

M323

6

19mm

Soft   with low compressive strength and high drillability marl, shale, anhydrite,   sand, clay

12-1/4"

M323

6

19mm

9-7/8"

M323

6

19mm

8-1/2"

M323

6

19mm

12-1/4"

M323

5

16mm

Soft   to medium compressive strength and high drillability shale, sand, chalk,   limestone; soft to medium with low compressive strength and anisotropic   layers shale, sand, chalk, limestone

12-1/4"

M323

6

16mm

9-7/8"

M323

6

16mm

8-1/2"

M223

5

16mm

8-1/2"

M323

6

16mm

8-1/2"

S323

6

16mm

6"

M222

5

16mm

12-1/4"

M333

6

13mm

Medium   to hard with medium compressive strength and small abrasive layers shale,   sandstone, limestone; Hard dense with high compressive and abrasive: shale,   sandstone, limestone, siltstone

12-1/4"

M433

7

13mm

12-1/4"

M433

8

13mm

9-7/8"

M333

6

13mm

8-1/2"

M333

6

13mm

8-1/2"

M433

7

13mm

8-1/2"

M433

8

13mm

6"

M333

6

13mm

6"

M433

8

13mm

6"

M332

5

13mm