15 1/2" oilfield tricone drilling bits

and high wear resistance.
Surface of the high precision bearing heat treated by using advanced heat treatment process to improve the load capacity and service life of the bearing.
The service life of the bearing is further extended by adopting harder and mort wear resistant material for thrust bearing.
Preventing reflux structure has dual function, it can avoid air counterflow and dust entering into bearing when the air-compressor stop working accidentally, and separate air and water in order to avoid water entering into bearing when it works normally to prolong the life of bearing.
TCI tricone bits for Oil Drilling
Inserted tricon bits
1. This series tricone bit use Sealed roller bearing structure. With rollers arranged in grooves recessed in the cone body, the size of the bearing journal is increased.
2. Thrust bearing surfaces are hardfaced and treated with friction reducing technology.
3. Ball locked cone, suitable for high rotary speed.
TCI Tricone bits
1 This series tricone bit use Journal bearing. Hardfaced head bearing surface. Cone bearing inlaid with friction reducing alloy and then silver-plated. The load capacity and seizure resistance of the bearing is greatly improved.
2. O ring seal is made of the more wear resistance high saturated buna-N with the increased seal section and precisely designed sealing flange in the cone sealing area increased the reliability of the seal.
3. The bit bearing can be ball locked
4. For steel tooth bit, the tooth surface is hardfaced with new type of wear resistan
Material and thus extended working life of the cutting structure while still maintaining high ROP. 5..Main Availability

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

TCI 437 soft formation tci tricone bits

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

TCI 517   medium formation tci tricone bits

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

TCI 637 can be used to drill hard and abrasive forma-tions .wear –resistant tungsten carbide inserts are used in the outer rows to prevent loss of bit gauge.maximum numbers of hemispherical-shaped inserts are used in all rows to provide cutter durability and long life.

TCI 617 the tci 617 features robust chisel tungsten carbide inserts on the heel row and conical on the inner rows .this design provides a fast drilling rate and added cutting structure durability in medium to medium hard formations . the HSN rubber o-rin provides adequate sealing for bearing durability .

The 114-117soft formation tooth bits are used to drill low-compressive strength ,soft formations long projection tooth lengths are used on high offset cones to provide the greatest penetration rates possible. Wear-resistent hard facing is used to control tooth wear. On the softest bit types this hard facing completely covers the bit teeth.

The 127 medium – hard formation tooth bits

Used to drill high-compressive strength medium hard formations   short projection teeth with reduced crest length are used in this series of bit designs durable hard facing is applied to reduce tooth wear.

Milled tooth bit specializes in designing, manufacturing, marketing and serving the high performance diamond bits and drilling tools used in petroleum industry .The company is established by the top experts of the field ,and equipped with advanced equipments and facilities .Our diamond bits named Great, which ranging from 3"to 17-1/2".All the products have been awarded the ISO9001 certificate.Furthermore, the experienced and knowledgeable service team will ensure all the superior performance of our products in both the domestic and international market.With our service pursuit "Drilling requirement initially ,Customer satisfaction finally ",we assure the products the best quality by adopting advanced design technology ,manufacturing process and strict quality control .Our company will always improve and innovate to satisfy different needs for all users in the entire world

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.

1,Types: steel tooth tricone bit (mill tooth tricone bit) and tricone bit(tungsten carbide inserted tricone bit),both of which are used for mining pilling, water well drilling or oil well drilling

2,Model: various kinds and according to the requirements of customers

3,Material: ally steel,tungsten carbide insert

4,Color: can be as you like                                        

5,Size: from any other regular size available from1.8"(45 mm)to 26"(660 mm)

6,Moq:1 piece

7,Bit body Color: can be as you like: matrix body,pdc cutters

8,Certification: API

9,Applicable of: petroleum&gas,water well and mining

10,Bearing sealed: metal sealed(HJ)rubber sealed(HA) not sealed(W)

11,Formation: soft formation, soft to medium hard formation, medium hard formation ,hard formation,very hard formation   .We have different and suitable types

12,Button bit: small tooth, big tooth,conical inserts,chisel inserts

13,Packing: in wooden case or steel case

14,Payment term: L/C at sight,T/T

15,Delivery time:about two weeks,but still depending on the quantity of the order

16,Advantage: high quality on time delivery and large available quantity

17,Strongest bit in good price, best service and on time delivery.

18,Many years' experience to insure you the quality and you can rest assured if do business with us

19,We are a professional supplier of new and used (rebuilt) drill bits used for oil filed,waterwell. Including tricone bits, PDC bits and drill bits. Various of model and dimension available ,good condition and reasonable price

3.

Size		Bit Type oF tci tricone bit
In.	mm
6	152.4	517G, 537G, 617G, 637G
6 1/2	165.1	517G, 537G
7 7/8	200.0	517G, 527G, 547G, 617G, 627G, 637G
8 1/2	215.9	437G, 447G, 517G, 537G, 617G, 627G, 637G
9 1/2	241.3	437G, 517G, 537G, 547G, 617G
9 5/8	244.5	437G, 517G, 537G, 547G, 617G
9 7/8	250.8	437G, 517G, 537G, 547G, 617G
12 1/4	311.1	437G, 517G, 537G, 617G, 627G, 637G
17 1/2	444.5	517G, 537G, 617G, 627G, 637G

Model
IADC CODE	116 117 12 6127 136 137 216 217 226 226 316 317 326 327 336 337115 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 625635 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,mediumhard,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 ,oilfield, construction, geothermal, directional boring, and undergroundfoundation work

Contact Supplier