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7 1/2'' 190mm IADC 217 Steel Tooth Tricone Rotary Roller Cone Bit

HJ Bit is a leading manufacturer and supplier of high-quality 7 1/2'' 217 Tricone Steel Tooth Bit in China. With over 20 years of experience in providing durable and reliable drilling tools, HJ Bit ensures top performance in challenging drilling environments. When you need a high-quality milled tooth tricone bit, always choose HJ Bit!
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Product Description

Steel tooth drills are suitable for extremely soft formations with low compressive strength and high drillability such as clay, mudstone, chalk, etc. They are also suitable for medium strata with high compressive strength, such as soft shale, anhydrite, medium soft limestone, medium soft sandstone. Medium stratum with a hard interlayer


Product Parameter

Parameter Value
IADC Code 217
Diameter 7 1/2" (190mm)
Tooth Type Milled tooth/Steel tooth
Bearing Type Elastomer sealed bearing
Circulation Type Mud fluid
Thread Connection 4 1/2 API REG PIN
Nozzle Three jet nozzles
Gauge Protection Available
Shirttail Protection Available
Operating RPM (r/min) 100~60
Operating WOB (KN) 0.4~1.0


Features & Advantages

The Tricone Steel Tooth Bit is built for maximum performance in tough drilling conditions. Featuring a high-precision journal bearing, ball-locked cone, and hardfaced head bearing, it’s engineered to withstand high-speed operations. The friction-reducing alloy lining and silver plating offer exceptional abrasion resistance, ensuring reliability even under demanding conditions. Tungsten carbide inserts in the gauge area reduce wear, enhancing stability and prolonging the bit's lifespan. Premium carbide teeth provide superior resistance to breakage and wear, further extending the cutter’s durability.

This superior method provides a stronger, more impact-resistant tooth than milling because the metal particle structure during forging is protected, resulting in stronger teeth. The details of Steel tooth Bit.

The heat treatment process selectively carburizes the bearing wear surface to ensure the toughness of the structure. This provides long-lasting and reliable bearing performance.

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Service

  • Custom Solutions: Get designs and specifications tailored precisely to your drilling requirements.

  • Global Reach: Fast and dependable shipping to any location, ensuring on-time delivery.

  • Expert Guidance: Receive professional advice on product selection, maintenance, and troubleshooting.

  • Ongoing Support: Enjoy comprehensive after-sales care, including parts replacement and continuous customer assistance.

Applications

  • Water Well Drilling: Highly effective in soft formations like clay, mudstone, and chalk.

  • Oil & Gas Drilling: Ideal for drilling through soft rock with low compressive strength.

  • Geothermal Drilling: Perfect for soft formations, making it an excellent choice for geothermal wells.

  • HDD & Exploration: Flexible and reliable for horizontal directional drilling and diverse exploration projects.

  • General Drilling: Optimal for low-strength formations such as soft rock and mudstone


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NAVIGATION

Hejian Hengji Bit Manufacture Co.,LTD  is specialized in researching and production of rock drilling bits , mainly includes tricone bits, PDC bits, HDD hole opener, foundation single roller cutters, drag bits and related tools with advanced CNC machines and R&D team.

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Junziguan industrial zone, hejian city, hebei province
+86-317 3213999
+86-18232837832
+86-18232837832
+86-18232837832
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