17 1/2'' 444.5mm IADC code 235 milled steel tooth tricone drill bit
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Introduction
Steel tooth tricone bit: it is suitable for very soft formation with high drilling efficiency and excellent diameter protection ability. According to different formation hardness and drill ability, the mill tooth bit can machine different height and width teeth on the outer line of the cone ,and weld a layer of WC wear-resistant material on the surface of theteeth to enhance wear resistance.
| Bit size | 17 1/2'' |
| IADC code | IADC 117 |
| Tooth Type | steel tooth |
| Connection | 7 5/8’’API REG PIN |
| Recommended WOB (KN/mm) | 0.4-1.0 |
| Recommended RPM (r/min) | 80-50 |
| Net Weight (kg) | 250 |
| Gross Weight (kg) | 270 |
| Packaging Dimension (cm) | 50×50×70 |
| Structural Features |
High rock breaking efficiency, good wear resistance, using high-strength, high-temperature resistant, and wear-resistant materials to improve service life. |
Characteristics of Tricone Bits
Tricone bits, with their high efficiency, stability, and adaptability, have become indispensable tools in modern drilling operations. Their comprehensive characteristics can be summarized in the following aspects:
Structural Features
Tricone bits typically consist of cones, bearings, water passages, and nozzles. The core function is rock breakage through rotation and pressure. The cones are studded with cutting teeth that alternately contact the well bottom, effectively reducing wear and improving drilling efficiency. Tricone bits are classified by the number of cones: single, double, triple, and multiple, with tricone bits being the most common due to their good balance and high drilling efficiency.
The bearing system is a crucial component of the bit, typically using rolling or sliding bearings. The bearing inner race mates with the cone shaft, ensuring stability and wear resistance during high-speed rotation. The bit's locking system, including ball locking and thrust bearings, secures the cones and withstands axial loads.

Differences in Characteristics Between steel tooth Bits and TCI Bits
Steel Tooth (Milled Tooth) Bits and TCI (Tungsten Carbide Insert) Bits are the two primary categories of tricone drill bits. The core distinction lies in their cutting element material & design, which dictates their performance, durability, ideal applications, and cost.
TCI bits have a longer service life and are suitable for medium-hard to extremely hard formations. They are more expensive but better suited for long-term operations; steel teeth, due to material and structural limitations, have a shorter service life and are suitable for soft to medium-hard formations, but are less expensive and suitable for rapid drilling. Insert bits and steel teeth each have advantages and disadvantages; the choice of which type of roller cone bit to use depends on the specific geological conditions and drilling requirements.

Tricone bit Advantages
Tricone bits have the characteristics of small contact area, high specific pressure, low torque, and long cutting edge length, resulting in high efficiency and stability during drilling. For example, composite tricone bits combine the advantages of three-cone bits and disc bits, significantly improving mechanical drilling speed and extending service life.
Tricone bit Working Principle
Tricone bits break rocks through the impact, shearing, and crushing action of the cutting teeth. They have high rock breaking efficiency and strong adaptability, capable of handling various formations from soft to hard. In addition, composite tricone bits combine the advantages of milled tooth bits and TCI teeth bits, further improving rock breaking efficiency and service life.
Tricone bit Application
Tricone bits are suitable for various geological conditions, including oil exploration, water wells, geothermal wells, coalbed methane wells, and mining. Their design can be adjusted according to the characteristics of different formations to meet the needs of complex formations.
FAQs
Q:Is your company a distributor or a manufacturer?
A: Yes,We are a a professional factory of tricone bit,PDC bit in China.
Q: What are the advantages of your company?
A: Our company integrates R&D and manufacturing. We providing customers with efficient one-stop services including design and development, customized suggestions, manufacturing, direct sales, and after-sales support.
Q: How can I find the bit model I need on the website?
A: You can search for the product you need in the "Product" on the website using information such as "IADC code" and "tooth type".Since the models listed on our website represent only a selection of our inventory, if you cannot find the specific model you require, please contact our sales team(sales@haosubit.com) for a quotation.
Q: Can the bit be customized based on specific needs?
A: Yes,we offers tailored solutions for unique drilling requirements, ensuring the best performance for each project.
Q: What packaging options are available for this product?
A: The bit is packaged in wood boxes, with fumigation trays available if necessary. Custom packaging can also be provided based on the customer's needs.
Q: How soon can I receive the product after ordering?
A: If the product is in stock, it can be shipped within 1 week. Delivery time may vary depending on order quantity when out of stock.
Q: How is the product delivered?
A: The product can be delivered by sea or air, depending on your location and order specifications.
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