- Condition:New
- Warranty:6 months
- Applicable Industries:Construction works
- Applicable Industries:Energy & Mining
- Local Service Location:canada
- Local Service Location:turkey
- Local Service Location:UNITED KINGDOM
- Local Service Location:United States
- Local Service Location:ITALY
- Local Service Location:brazil
- Showroom Location:canada
- Showroom Location:turkey
- Showroom Location:UNITED KINGDOM
- Showroom Location:United States
- Showroom Location:ITALY
- Showroom Location:brazil
- Place of Origin:CN;HUB
- Type:DRILL BIT
- Machine Type:Drilling Tool
- Certification:API
- Material:CARBIDE
- Processing Type:CASTING
- Use:Well Drilling
- Brand Name:Kingdream
- Product Name:API 7-7/8"Tricone Roller Bit Steel Tooth Bit for Well Drilling
- Product Size:7 7/8"=200 mm
- IADC:127
- Weight:30/35 Kgs
- Bearing Type:O-Ring Sealed Journal
- Pin Connection:API Reg. 4 1/2"
- Hydraulic Design:3 Nozzles with Snap Rings
- Standard:API Spec 7-1
- Condition:100% New
- Usage:Oil&Gas and Water Well Drilling
API 7-7/8"Tricone Roller Bit Steel Tooth Bit for Well Drilling
Our tricone bits are mainly used in oil well,water well,and geothermal well drilling engineering.
East drilling bits are designed and manufactured according to the API & ISO standard which characteristics are long life, high drilling efficiency and low operation cost.
At present, we can produce bit sizes ranging from 2 7/8" to 26"and they can be applied to difference formations from soft to very hard.

API 7-7/8"IADC127 Tricone Roller Bit Steel Tooth Bit for Well Drilling | |
Diameter | 7-7/8” = 200 mm |
Model | HA127G |
Pin Thread | API Reg. 4 1/2” |
Gross Weigh/Net Weight | 30 / 35 Kgs |
Packing Size | 250X250X400 mm |
API SPEC 7-1 | |
Bearing | O-Ring Sealed Journal Bearing |
Normal WOB | 0.35~1.05 KN/MM |
Rotary Speed | 100~50RPM |
Cutting Structure | Large dia offset crested scoop compacts in inner row,with added number of compact rows,and a row of trimmers is added between gauge row and heel row. |
Drilling Formation | Soft with low compressive strength and high drill ability,such as shale,clay,sandstone and soft limestone,etc |
API EAST Brand Tricone Bit Tolerance | ||
Outer Diameter of Tricone Bit | Outer Diameter Tolerance | |
3 3/8 ~ 13 3/4 inch | 0 ~ 0.0313 (1/32) inch | 0 ~ 0.79 mm |
14 ~ 17 1/2 inch | 0 ~ 0.0625 (1/16) inch | 0 ~ 1.57 mm |
17 5/8 ~ 26 inch | 0 ~ 0.0625 (1/16) inch | 0 ~ 2.38 mm |
EAST Brand Nozzle Sizes of Tricone Bit | |||||
Code of Nozzles | Tricone Bit Diameter | O.D.of Nozzles | Length of Nozzles | Inner Dia. of Nozzles | |
inch | mm | mm | mm | mm | |
S 0 | 3 5/8 ~ 4 | 92.1 ~ 101.6 | 18.12 | 15.96 | 6 ~ 14 |
S 1 | 4 1/8 ~ 5 3/4 | 104.78 ~ 146.1 | 20.30 | 17.48 | 6 ~ 14 |
S 2 | 5 7/8 ~ 7 3/8 | 149.2 ~ 187.3 | 23.50 | 19.05 | 6 ~ 16 |
S 3 | 7 1/8 ~ 8 1/4 | 190.5 ~ 209.6 | 29.74 | 20.62 | 6 ~ 22 |
S 4 | 8 3/8 ~ 14 5/8 | 212.7 ~ 371.5 | 32.89 | 26.97 | 6 ~ 22 |
S 5 | 14 3/4 ~ 26 | 374.6 ~ 660.4 | 40.84 | 26.97 | 6 ~ 22 |
SC2 | 8 3/8 ~ 11 | 212.7 ~ 279.4 | 23.50 | 26.00 | 6 ~ 14 |
SC4 | 11 5/8 ~ 17 1/2 | 295.3 ~ 444.5 | 32.89 | 35.32 | 6 ~ 22 |

Cangzhou East Drilling Tools Co.,Ltd is a professional manufacturer of TCI tricone bit,steel tooth bit,PDC bit,hole opener ,drag bit in China which can be used for Oil&Gas,Mining and Water Well Drilling fields. We have worked on production of good quality drilling bits since 2008,and export toUSA,UK,Middle East,South Africa,Singapore,India,more than 20 countries. Our professional team also can provide creative solutions for your special needs.

TCI Tricone Bit is the most popular drilling bit in the world,it can be widely used for Oil&Gas Drilling,Mining,Water Well, Geological Exploration areas.
The IADC from 417 to 837 can meet your difference hard formation.
Also you can tell us the drillingformation,then we can offerprofessional suggestion for IADC.

1. 100% New Tricone Bit and Good Quality
2. More Ready Stock for Prompt Delivery Time
3. Accept SGS and IEI or Any Third Party Inspection to Our Factory.







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