high quality Factory supply 12 1/2 inch tooth roller cone bit for oil and water well drilling

                            factory direct tungsten carbide rock drill bit for water well drilling and oilfield

(1) Cutting Structure of this series Tricone :

The durability of premium tungsten carbide inserts is improved with new formulas and new techniques for insert bit.The wear-resistance of teeth is enhanced with premium tungsten carbide hardfacing on the tooth surfaces for steel tooth bit.

(2) Gauge Structure of this series Tricone :

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.

(3)Bearing Structure of this series tricone :

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.

(4)Seal and Lubrication of this series tricone:

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.

Main product:

(1)IADC code: 116 117 126 127 136 137 216 217 226 226 316 317 326 327 336 337 115 125 135 215 225 235 315 325 335 114 124 214 314 111 121 131 346 347 417 427 437 517 527 537 617 627 637 737 837 832 415 425 435 445 525 625 635 416 427 436 446 447 516 526 537 547 516 536 535

(2) Sizes: From 2 7/8 to 26"larger sizes for hole opener bit ,reamer bit

(3)bearing type: sealed bearing and non-sealed bearing ;HJ(metal sealed journal bearing) ;HA (rubber sealed journal bearing ;aircooled bearing type

(4)formation or layer: soft ,medium soft ,hard,medium hard,very hard formation

IADC437

The 437 tci bits are used to drill low compressive strength,very soft formations .TCI bits maximize the use of bothconical and chisel tungsten carbide inserts of large diameters and high projection.This cutting sstructure design,combined with maximum cone offset,results in high bit penetration rates .The deep intermesh of cutter rows prevents bit bailing in sticky formations.

IADC517

The 517features aggressive chisel tungsten carbide inserts on the heel rows and inner rows.This desing provides a fast drilling rate and added cutting structure durability in medium-to –medium hard formations .The HSN rubber o-ring provides adequate sealing for bearing durability.

IADC637

The 637bits can be used to drill hard and abrasive formations .Wearresistant tungsten carbide inserts are used in the outer rows to prevent loss of bit gauge.Maximum numbers of bemisphericalshaped inserts are used in all rows to provide cutter durability and long life.


IADC617

The 617features robust chisel tungsten carbide inserts on the heel row and conical on the inner rows.This design provides a fast drilling rate and added sutti8ng structure durability in medium to medium hard formations .The HSN rubber o-ring [rovodes adequate sea;omg fpr bearomg dirability.

1. How to send inquiry? 
Answers:
It is better send us detailed specifications of products;
it is better attaching some photos for better understanding.
If you are not experienced on drilling fields, for example, many customers don't know IADC code,
please feel free, just tell us the applications like oil/gas/geothermal/HDD/waer/mining, depth of well,
average hardness of rocks, then we will advise suggestions and solutions.

You can:
- Send us inquiry from Alibaba.com platform.
- Send email to us directly or talk on Skype or Whatsapp, sales persons are always waiting for service in working days,
and all the inquiries can be replied within 10 hours. (Email, Skype, Whatsapp in below.)

 2.What is the quality of your rock bits? 
Answers:
We have many series of rock bits, quality grades are different, and prices are different.
We believe, the proper tools with higher cost-performance is the most important. For example,
our top quality rock bits is not cost-effective for water well driling, as the water well drilling machine
can not drive the super rock bit to perform their best. But for very deep well drilling, high quality grades
rock bits is cost effective even its price is much higher.

So it is better tell us as more as possible the details of projects, then we provide the proper solutions
and offer, usually 2 or 3 solutions will be provided for options.

 3. Do you have Selling Records or Recommendation Letters issued by customers? 
Answers:
Yes, we have, please ask from us if you are real buyer. You can ask our old customers from worldwide
what they think about our quality and services.

4. Do you support Trade Assurance Service of Alibaba.com? 
Answers:
Yes, we support ! And some discount could be offered if using Trade Assurance service