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1.8 1/2 kingdream rock drill bits, 2.With API and ISO9001, 3.Metal sealed journal bearing, 4.Fast drilling rating, 5.Cheap - details see: https://www.machineto.com/8-1-2-metal-or-rubber-sealed-bearing-kingdream-rock-drill-bits-with-tungsten-carbide-inserts-10317322

I am Wendy Guo at your service at any time!

All sizes and IADC codes of drill bits are available. Special requirements of different models can be customized.

8 1/2 Metal or rubber sealed bearing kingdream rock drill bits with tungsten carbide inserts

1.Introduction about us:

We are Hejian Deris Petroleum Drilling Equipment Co., Ltd Drilling Supplies Marketing Dept. specializes in drill bits, drill pipe, Mud pump and stablizers for water well, oil field, construction, geothermal, directional boring, and underground foundation work all over the world. Our purpose is to sell the best quality products at the lowest possible price.

The principle of our company is based on the quality of survival. With advanced technology and scientific management, our company develops with reputations for providing quality products and best service.

2.Specifications about our products

About the tricone bit

tricone bit Cutting structure:very long widely spaced ,chisel-shaped inserts and considerable cone axis offset against center line of bit ensure very high penetration rate .To secure the bit from diameter loss, the gage protection inserts have got shorter length and greater angle of the top. Formations: long intervals of very soft poorly compacted shales ,sandstone, clays, salts and soft li mestones. Size and IADC available: 3 3/4" to 26" IADC 415,435,445,417,437,517,537,617,637,743

Detailed Description of the four types TCI Bits(Tungsten Carbide Insert Bit)

1. Metal-face sealed bearing TCI 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. Sealed Bearing Structure 1.Abrasion resistance and seizure resistance of the bearing are improved and suitable for high rotary speed. 2.The advanced metal seal package will improve the reliability and durability of bearing seal. Main Type Available Size: 6",6 1/2",7 1/2",8 1/2",9 1/2",9 5/8",9 7/8",12 1/4",17 1/2", etc. IADC Code:4-- Series, 5-- Series, 6-- Series,etc.

2. Elastomer sealed bearing TCI Bit
Cutting Structure	The durability of premium tungsten carbide insert is improved with new formulas and new techniques for insert bit.The Tricone bit field is composed of a shallow sequence of sediments of fluvial origin, in which sandstone channels contain heavy oil with gravity ranging from 11 to 13°
Gauge Structure	Multiple gauge protection with gauge trimmers on the heel of cone, tungsten carbide inserts and hardfacing on the shirttail increases gauge holding capability and bearing life.
Sealed Bearing Structure	1.Abrasion resistance and seizure resistance of the bearing are improved. 2.Premium O-ring, Optimal seal compression and curved seal structure can enhance the seal performance.
Main Type Available	Size: 5 7/8",6",6 1/2",7 1/2",7 7/8",8 1/2",9 1/2",9 5/8",9 7/8",12 1/4",14 3/4",17 1/2", etc. IADC Code:4-- Series, 5-- Series, 6-- Series,etc.

3. Air Cooling Roller Bearing TCI Bit
Cutting Structure	The durability of premium tungsten carbide insert is improved with new formulas and new techniques and new techniques.
Gauge Structure	Gauge protection with gauge inserts on the gauge surface of the cone, tungsten carbide inserts and hardfacing on the shirttail increases gauge holding capability.
Bearing Structure	Air cooling roller bearing package. Balls lock the conewhich reduces the probability of cone-dropping to minimum.The HH Tricone bit Series reduces sound to a maximum of 60 decibels at the location limit, compared to conventional rigs where sound averages up to 120 decibels.

Main Type Available

Size: 8 1/2",9 1/2",9 5/8",9 7/8",10 5/8",12 1/4", etc. IADC Code:5-- Series,6-- Series,7-- Series

4. Non-Sealed Roller Bearing TCI Bit
Cutting Structure	Dubowitz also recommended that Washington vigorously enforce Iran sanctions, imposing heavy penalties on Tricone bit violators. His full statement is available.
Bearing Structure	Non-sealed roller bearing. Drilling fluid can enter the bearing directly for cooling; Balls lock the cone which reduces the probability of cone Cdropping to minimum.
Main Type Available	The president is issuing Tricone bit edicts, Congressional representatives are falling over themselves vying for camera time to get their comments out there, and everyone is demanding answers that will not exist until a thorough drill pipe investigation by experienced oilfield professionals has been conducted.

3.More information about our products:

Available sizes:

60mm,65mm,76mm,93mm,95mm,98mm(3 7/8”),101.6mm,114mm,118mm,120mm,127mm(5”) 130.1mm(5 1/8”),133.3mm(5 1/4”),139.7mm(5 1/2”),142.8mm(5 5/8”),149.2mm(5 7/8”) 152.4mm(6”),155.5mm(6 1/8”),158.7mm(6 1/4”),161.9mm(6 3/8”),165.1mm(6 1/2”) 190.5mm(7 1/2”),193.6mm(7 5/8”),200.0mm(7 7/8”) 212.7mm(8 3/8”),215.9mm(8 1/2”),222.2mm8 3/4”) 241.3(9 1/2”),244.4(9 5/8”),250.8(9 7/8”) 269.8(10 5/8”),295.3(11 5/8”) 311.1(12 1/4”),346.0 (13 5/8”),349.2(13 3/4”) 374.6(14 3/4”) 381(15”),393.7(15 1/2”),406.4(16”) 444.5(17 1/2”),508(20”),558(22”),609.6(24”) 660.4(26”)

Model	TCI Bit, Steel tooth bit
IADC CODE	116 117 12 6127 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
available sizes:	From 2 7/8 to 26” larger sizes for hole opener bit ,reamer bit
advantage	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
Material	Alloy steel ,carbide
Packing	Wooden case or steel case
Payment terms	T/T,L/C,Western union
Delivery terms	By sea or by air
Delivery time	Within 3 to 7 days
Market	Canada, USA,Middle east ,Africa,Europe
Application	petroleum&gas ,water well ,mining and tectonic industries ,oil field, construction, geothermal, directional boring, and underground foundation work

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PLs add the information in your inquiry.

1) the size of the tricone bit

2) the IADC tooth model, like 537G

3) PLs tell the drilling information of the layer.

4) PLs tell the quantity.