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8 1/2'' TCI tungsten carbide insert drill bits

8 1/2'' TCI tungsten carbide insert drill bits

8 1/2'' TCI tungsten carbide insert drill bits

Product Details:

Place of Origin: Hebei, China (Mainland)
Brand Name: fistbit
Certification: API-ISO
Model Number: IADC737

Payment & Shipping Terms:

Minimum Order Quantity: 1 Piece/Pieces
Price: USD 200~3500 / Piece
Packaging Details: wooden box, steel box, or as your requirements
Delivery Time: within 7-15 work days
Payment Terms: L/C T/T
Supply Ability: 2000 Piece/Pieces / Month
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Detailed Product Description

1.TCI tricone bit,TCI tricone bit with

sealed bearing ,tricone bit,TCI tricone

rock bit

•Cutting Structure

The durability of premium tungsten carbide inserts is improved with new formulas and new techniques for insert bit.

•Gauge Structure

Multiple gauge protection with gauge trimmers on heel and gauge inserts on the gauge surface of the cone, tungsten carbide inserts and hardfacing on the shirttail increases gauge holding capability and bearing life.

•Bearing Structure

High precision bearing with two thrust faces. Balls lock the cone.Hardface heard bearing surface. Cone bearing inlaid with friction-reducing alloy and then silver-plated. Abrasion resistance and seizure resistance of the bearing are improved and suitable for high rotary speed.

•Seal and Lubrication

The advanced metal seal package consists of two metal seats and two elastic energizers. Compressed energizers ensure good contact being kept on two sealing surfaces of metal rings by elastic force, and achieve the bearing seal. In the drilling, metal seal are relatively dynamic, and the energizers are static. This will improve the reliability and durability of bearing seal. The pressure compensator system and advanced grease can greatly increase the lubricating reliability.

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available sizes:

From 2 7/8 to 26”

larger sizes for hole opener bit ,reamer bit


most favourable price and best qualtity

bearing type:

sealed bearing and non-sealed bearing

HJ(metal sealed journal bearing)

HA (rubber sealed journal bearing

aircooled bearing type

Formation or layer

soft ,medium soft ,hard,medium hard,very hard formation

Button size (extra features)

Button bit,saw teeth

1) Y-Conical teeth 2) X-chisel teeth

3)K- wide teeth

4)G- Gague protection


Alloy steel ,carbide


Wooden case or steel case, or as your order

Payment terms

T/T,L/C,Western union

Delivery terms

By sea or by air

Delivery time

Within 7 to 15 days


Canada, USA,Middle east ,Africa,Europe

•These types of bits have some common features,

as follows

1.Force balanced,resist impact to the blade during high-speed drilling,to make bit work stable.

2.Plus wear knot section,reduce collion in the hugh-speed rotational vibration.

3.Patented matrix formulation,extended bit life.

4.Optimal hydraulic desigh,easy to move out the drill cuttings and cooling.

5.Equipped with back reaming teeth.

6.The cutter is high performance to increase the ability of anti-impact and anti-abrasive.

5.Payment Terms

T/T and L/C are acceptable.(30% advanced payment after sign the contranct ,then 70% payment after see the B/L)

6.FAQ(Frequently Asked Questions)

How to order the products?

Send the inquiry with detail item description or with Model number.
If there is no packing demand we take it as sea-way packing.
If possible please attach one reference picture to avoid any misunderstanding or any links from our website for we get a better understanding.

About lead time and shipping time?

Answer :
The lead time depend on quantity of order. Usually shipped by sea, small order or urgent order we can send you by air after received your agreement.
According the distance from china to your port, usually from China to European about 25 days. To West of American 20 days.

Can I expect a quality products?

Answer :
Yes. All our activities are accredited to ISO 9001:2008 and API, both in products and services, at the same time, mature production technology ensuring the quality satisfy international request.

Contact Details
China Oil Seal Co.,Ltd
Send your inquiry directly to us (0 / 3000)

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