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

Cemented Carbide Tricone Roller Bit

Cemented Carbide Tricone Roller Bit

  • Cemented Carbide Tricone Roller Bit
Cemented Carbide Tricone Roller Bit
Product Details:
Place of Origin: Hunan, China (Mainland)
Brand Name: New Diamond
Certification: ISO9001:2008
Model Number: 13 3/4" 532 349mm 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: 532 Circulation Type: Jet Air
Pin Connection: 6 5/8”API Metric Bit Diameter: 349mm
Product Weight: 123KG Weight On Bit: 27,500-68,750Ibs
High Light:

three cone bit


milled tooth drill bit

     Drill bits are the most widely used in oil drilling and geological drilling. Tricone bits have the effect of rocking, crushing and shearing the formation rock during rotation. Therefore, the roller cone bit can adapt to various soft, medium and hard formations. Especially after the emergence of jet-type roller bits and long-nozzle roller cone bits, the roller bit drilling speed is greatly increased, which is a major revolution in the development of roller cone bits. Tricone bit by tooth type can be divided into milling teeth (steel teeth) roller bit, insert the tooth (carbide roller gear set) roller bit; according to the number of roller can be divided into single cone, double cone , Tricone and multi-roller bit. The most widely used at home and abroad, the most common is the tricone bit.

     Rock drill bits are an essential part of the oil, exploration and drilling industries, but roller cone bits are too expensive for some drilling industries, prompting some drilling industries to produce large second-hand roller cone bits Interest, its low price and reliable quality (only 1/3 of its lifespan is used in oil drilling) reduce the cost of the drilling industry so that used roller bits have become an important part of some of the drilling industry.



1.Tailored insert shapes and grades manufactured using state-of-the-art tungsten carbide technology for different formations having varied drillability and compressive strength,to provide an optimum match beteen inserts wear resistance and toughness.
2.By using computer simulation of the rock bteaking at the bottom of the hole,Shareat’s engineers are able to design the best inserts space to ensure the most balanced load on each insert. Cemented Carbide Tricone Roller Bit 0
Cemented Carbide Tricone Roller Bit 1 3.Double rows of gage inserts For better maintaining full gage hole. 
Based on the calculating of the load distribution on the bearing components,all shareate bits incorporate bearings that have optimal geometry and load distribution designed to give maximum bearing life.

1.Non-Sealed Bearings

Bearing Type:Roller-Ball-Roller-Thrust Button without seal. 

Cemented Carbide Tricone Roller Bit 2

2.Sealed Bearings

Bearing Type:O-Ring Seal-Roller-Ball-Roller-Thrust Button. See 

·The seal keeps the mud,cuttings,air and water ouside the bearings.

·The bearing works in lubricant and friction conditions,this results in less bearing wear and longer bearing life.


Cemented Carbide Tricone Roller Bit 3
Cemented Carbide Tricone Roller Bit 4



1.Conventional Shirttail DesignThis shirttail features a”terraced”design,which increases escape area and the bailing velocity and decreases cuttings regrind and wear on shirttail and shirttail lip.

Hardmetal and wear resistant carbide were applied to shirttail and shirttail lip.

2.Particular Shirttail Design

This shirttail features a”terraced”design,which increases eacape area and the bailing velocity and decreases cuttings regrind and wear on shirttail and shirttail lop.

Hardmetal was applied to shirttail lip and lug.Wear resistant catbide on shirttail lip and lug and around the”terrace”lower part of shirttail lug.

Cemented Carbide Tricone Roller Bit 5


·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
13 3/4” 349mm 532 Soft formations with low compressive strengths. Off-set chisel on gage,conical on inner rows;Hardmetal on lug;Wear resistant carbide on shirttail lip and lug. 371 123 6 5/8”API 27,500-68,750Ibs/110-80RPM


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.


The appearance of the picture is different from that of the actual product, and the actual product is the standard.

Cemented Carbide Tricone Roller Bit 6

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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