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Hunan New Diamond Construction Machinery Co., Ltd.
Hunan New Diamond Construction Machinery Co., Ltd.
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Jet Air Circulation Bearing Milled Tooth Bit , Tci Tricone Bit 732 IADC Code

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Jet Air Circulation Bearing Milled Tooth Bit , Tci Tricone Bit 732 IADC Code

Brand Name : New Diamond
Model Number : 6 1/4" 732 159mm Tricone drill Bits
Certification : ISO9001:2008
Place of Origin : Hunan, China (Mainland)
MOQ : Negotiable
Price : Negotiable
Payment Terms : L/C, T/T, Western Union
Supply Ability : According to order quantity
Delivery Time : 5-8 work days
Packaging Details : Carton packaging and wooden box packing
IADC Code : 732
Circulation Type : Jet Air
Pin Connection : 3 1/2” API
Metric Bit Diameter : 159mm
Product Weight : 20KG
Weight on Bit : 25,000-43,750Ibs
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Tri-cone bit products are currently the most widely used production tool in the domestic oil drilling industry. This product has very good product performance and is very popular in actual construction. In order to better adapt to a variety of complex construction environment, our company adopted the state of advanced production technology for the product to make some necessary adjustments. New products using high-precision bearing design, tooth claw bearing surface surfacing wear-resistant alloy layer, roller bearings inlaid anti-wear alloy silver, improve the carrying capacity and anti-bite ability. Metal seal consists of a well-designed metal seal ring as the bearing axial dynamic seal, two high-elasticity rubber energizing ring are located in the claw and cone sealing area as a static seal, the optimized seal compression to ensure two A metal ring sealing surface always maintain good contact. A new rubber reservoir that limits differential pressure and prevents drilling fluid from entering the lubrication system provides a good lubrication guarantee for the bearing system. High strength and toughness carbide teeth, the optimal design of the number of teeth, the number of teeth, tooth height and unique alloy tooth profile, give full play to the high wear resistance of inserts bit and excellent cutting ability. Exhaust teeth composite diamond, enhanced the role of gauge.


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.
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.

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.


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.


·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 DiameterIADCApplicationsSpecial Features(Cutting Structure,Lug Protection)WeightPIN ConnOperating Suggestions WOB/RPM
6 1/4” 159mm732Hard and abrasive formations with high compressive strengthsOvoid on gage,ogive on inner rows;Hardmetal on lug;Wear resistant carbide on shirttail lip and lug.44203 1/2” API25,000-43,750Ibs/90-60RPM

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.

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