Stock Sale Item – Bits
IADC coding
First digit
Second digit
Third digit
1, 2 and 3 designate Steel tooth bits with 1 for soft, 2
for medium and 3 for hard formations.
4, 5, 6, 7 and 8 designate Tungsten carbide insert bits
for varying formation
for medium and 3 for hard formations.
4, 5, 6, 7 and 8 designate Tungsten carbide insert bits
for varying formation
1, 2, 3 and 4 are a further breakdown of formation with
1 the softest and 4 the hardest.
1 the softest and 4 the hardest.
This digit will classify the bit according to bearing/seal
type and special gauge wear protection as follows:
type and special gauge wear protection as follows:
1. Standard open bearing roller bit
2. Standard open bearing roller bit for air drilling only
3. Standard open bearing roller bit with gauge
protection which is defined as carbide inserts in the
heel of the cone
protection which is defined as carbide inserts in the
heel of the cone
4. Ball & roller sealed bearing bit
5. Roller sealed bearing bit with carbide inserts in the
heel of the cone
heel of the cone
6. Journal sealed bearing bit.
7. Journal sealed bearing bit with carbide inserts
in the heel of the cone.
in the heel of the cone.
Drill Bits
- 5 7/8″ TCI Bit IADC 517
- 10 5/8″ TCI Bit IADC 632
- 12 1/4″ TCI Bit IADC 437 FAP
- 17 1/2″ MT Bit IADC 121
- 17 1/2″ MT Bit IADC 111
- 12 1/4″ OD ReRun Rock Bit IADC 122
- 16″ OD ReRun Rock Bit IADC 115
