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Double-cone crown design;

Internal and external gauge layout ofnatural diamond;

It is suitable for high compression andbroken formations, such as dolomite, limestone and clayey sandstone.


Drill bit

SPECIFICATIONS

RECOMMENDED OPERATION PARAMETERS

Size

TFA

GAGE LENGTH

COREBARREL

SIZE

HYDRALLIC FLOW RATE

ROTATION SPEED

WEIGHT ON BIT

In

Pos

in

in

L/S  gpm

rpm

Kn  0001ba

5-  7/8

0.15-1.00

1-1/8

4-3/4*2-5/8

6-13  100-200

60-200

36-113  8-25

6

0.15-1.00

1-1/8

4-3/4*2-5/8

6-13  100-200

60-200

36-113  8-25

8-1/2

0.20-1.50

1-7/16

6-3/4*4

11-19  180-300

60-200

68-135  15-30