IADC Codes

IADC Codes

IADC Codes - Tricone Rock Bits

IADC Codes are designed to make it easier for drillers to describe what kind of rock bit they are looking for to the supplier.

The first three digits classify the bit according to the formation it is designed to drill and the bearing/seal design used.

Bit Type and Hardness of Formation to be Drilled
First Digit:

1, 2, and 3 steel tooth bits (from softest to hardest).
4, 5, 6, 7, and 8 tungsten carbide insert bits (from softest to hardest).
Formation SubCategory
Second Digit:

from softest (1) to hardest (9).

Bit Feature
Third Digit
  1. Open Bearing
  2. Open Bearing, Air Cooled 
  3. Open Bearing with Gauge Protection
  4. Sealed Roller Bearing
  5. Sealed Roller Bearing wih Gauge Protection
  6. Sealed Journal Roller Bearing
  7. Sealed Journal Roller Bearing with Gauge Protection.

Footage First Rewards

Become a Member

View Our Catalogs

View Online (.pdf)



Global Sales: 1.888.465.1569
Arizona Office: 844.836.6225
California Office: 844.573.0854
Florida Office: 877.544.4211
Georgia Office: 888.448.4430
Minnesota Office: 320.616.0701
Missouri Office: 877.699.2159
New Jersey Office: 888.379.0371
North Carolina Office: 828.838.2110
Pennsylvania Office: 717.515.9809
Wisconsin Office: 888.465.3704