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TRICONE DRILL TOOL
5 IADC series · 54 models | Soft to extremely hard formations · Φ159–349 mm
Choose a series by formation hardness
The first IADC digit indicates formation hardness: 4xx is the softest, 8xx the hardest. Fix the formation first, then choose the model by hole diameter.
Soft Formation Series 4 IADC 4XX
Steel tooth structure for very soft to soft formations with low compressive strength and high drillability, such as shale, soft limestone, sandstone and conglomerate.
- 12 models
- Φ159–270 mm
- 20–74 kg
Medium-Soft to Medium-Hard Series 5 IADC 5XX
For medium-soft to medium-hard formations, balancing penetration rate and tooth life; used in water wells, mine blastholes and similar operations.
- 9 models
- Φ171–349 mm
- 21–123 kg
Medium-Hard Series 6 IADC 6XX
For medium-hard formations; tooth type and bearing selected by weight on bit and rotary speed; suitable for mining, quarrying and geothermal drilling.
- 14 models
- Φ171–311 mm
- 21–98 kg
Hard Formation Series 7 IADC 7XX
Insert tooth structure for hard formations with high compressive strength, such as limestone, dolomite and chert.
- 12 models
- Φ159–311 mm
- 20–98 kg
Extremely Hard Series 8 IADC 8XX
For extremely hard and abrasive formations; denser tooth layout for high weight on bit and low rotary speed in deep holes.
- 7 models
- Φ200–311 mm
- 34–98 kg
Full specifications for every model
All 54 models come with a specification table: diameter, IADC code, recommended weight on bit, rotary speed, air pressure, connection thread and weight. Open a model to see its cutting structure, shirttail protection and the rest of the series.
Matching tricone drill rods
Friction-welded at the Mengyin plant with heavy tube upsetters and precision thread lathes, built for high torque and supplied with bits.
Not sure which series fits?
Send us the formation, hole diameter and rig model — we reply with a selection proposal and quotation within 24 hours.