Hunan New Diamond Construction Machinery Co., Ltd.
Hunan New Diamond Construction Machinery Co., Ltd.

Hunan New Diamond Construction Machinery Co., Ltd.

Home ProductsTricone Drill Bit

7 7/8” 412 IADC CodeTricone Drill Bit For Oil Well , 200mm Bit Dia

7 7/8” 412 IADC CodeTricone Drill Bit For Oil Well , 200mm Bit Dia

  • 7 7/8” 412 IADC CodeTricone Drill Bit For Oil Well , 200mm Bit Dia
7 7/8” 412 IADC CodeTricone Drill Bit For Oil Well , 200mm Bit Dia
Product Details:
Place of Origin: Hunan, China (Mainland)
Brand Name: New Diamond
Certification: ISO9001:2008
Model Number: 7 7/8" 412 200mm Tricone drill Bits
Payment & Shipping Terms:
Minimum Order Quantity: Negotiable
Price: Negotiable
Packaging Details: Carton packaging and wooden box packing
Delivery Time: 5-8 work days
Payment Terms: L/C, T/T, Western Union
Supply Ability: According to order quantity
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Detailed Product Description
IADC Code: 412 Circulation Type: Jet Air
Pin Connection: 7 7/8" API Metric Bit Diameter: 200mm
Product Weight: 34KG Weight On Bit: 7,880-15,750Ibs
High Light:

three cone bit


milled tooth drill bit

The main structural features
1, the use of high strength and toughness carbide teeth, improve the impact resistance of teeth to reduce the broken tooth rate;
2, Optimized design of the number of teeth, the number of teeth, tooth height and unique alloy tooth profile, give full play to the bit cutting ability and cutting speed;
3, the use of snap-lock locking cone, can withstand high-pressure drilling;
4, cone welding inlay reduction alloy, improve anti-bite bearing capacity;
5, the use of highly saturated nitrile rubber O-ring, the optimized seal compression to improve the reliability of bearing seals;
6, the use of all-rubber reservoir can limit the pressure differential and prevent the drilling fluid from entering the lubrication system, providing a good lubrication for the bearing system and ensuring the normal working of "O" ring seals and increasing the working life of the drill bit;
7, the use of new low-wear grease, drill seal lubrication system to improve the ability of high temperature.





· Please select the applicable formation and parameters according to the instructions.


· Carefully check the bits appearance and to check the bits threaded end face,whether the serial number on the box and certificate.


· Selection of WOB and RPM should be within the limits of the recommended parameters, higher WOB and RPM cannot be used simultaneously.


· Bottom hole must be clean and bit must not be used for long section reaming.


· Drilling process must operate smoothly, find that there is Bie jump on abnormal phenomenon, should be timely analysis and take effective measures


· The bit should be kept indoor with dry and well ventilated conditions at 10-33℃ and kept from sunshine and rain. Stored under such conditions, quality of bit is guaranteed for 3 years.



Bit Diameter IADC Applications Special Features(Cutting Structure,Lug Protection) Weight PIN Conn Operating Suggestions WOB/RPM
Ibs KG
7 7/8” 200mm 412 Very soft formations with low compressive strengths and high drillability. Chisel on gage,conical on inner rows;Hardmetal on lug;Wear resistant carbide on shirttail lip and lug. 75 34 4 1/2” API 7,880-15,750Ibs/120-90RPM


Feature Advantage

1. Price commitment: in order to ensure the high reliability of products, raw material selection are using grapefruit brand products; under the same competitive conditions, and not to reduce product technical performance on the basis of sincerity at a favorable price to customers.


2. Quality commitment: product manufacturing and testing have quality records and inspection data; the performance of the product can withstand customer inspection.


3. Customer service: in order to create new diamond brand, enhance the visibility of enterprises,establish corporate image, we serve customers with the principle of "preferential prices, good service, reliable product quality" principle.


Contact Details
Hunan New Diamond Construction Machinery Co., Ltd.

Contact Person: Rick.liao

Tel: +8618692219720

Send your inquiry directly to us
Hunan New Diamond Construction Machinery Co., Ltd.
PinJiang Industry Park,PingJiang county,YueYang City,Hunan,China.
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