12 1/4 inch IADC 127 Steel Tooth tricone bit

Basical Parameter

Bit Size

12 1/4"(311.2MM)

IADC Code

127T

Connection

6 5/8"API reg pin

Nozzle Qty

3NZ

Make up Torque(KN.m)

38~43.4

Operating Parameter

Rotary Speed(rpm)

150~70

Weight on Bit(KN/MM)

0.35~0.9

Formation

Soft formation with low compressive strength ,and high drillability ,such as mudstone,gypsum,salt,soft limestone,etc.