9 7/8 IADC 537 tci tricone bit

Basical Parameter

Bit Size

9 7/8"(250.8MM)

IADC Code

537G

Connection

6 5/8"API reg pin

Nozzle Qty

3NZ

Make up Torque(KN.m)

38~43.4

Operating Parameter

Rotary Speed(rpm)

120~50

Weight on Bit(KN/MM)

0.45~1.0

Formation

Soft to medium formation with low compressive strength ,such as medium soft shale,medium softlimestone,medium soft sandstone,medium formation with harder and abrasive interbeds,etc.