Welcome visit hengji bit company 
We have all size of tricone bits,PDC bits,core bits,steel tooth bits,insert tricone bits,single cone bits,hole opener,assemble tricone bit,etc. Suitable for soft to hard formations.
4 1/2" milled teeth tricone bit for well drilling
Surface of cone back and cutters are hard enhanced by high wear resistance tungsten carbide,largely increase the work life of bit.
Optimal cutter rows,cutter quantity,cutter length and cutter structure design largely improve the drilling capability and speed.
Widely used in oil exploration,mining prospecting,subterranean heat ,hydrology etc.
| IADC | WOB(kN/mm) | RPM(r/min) | Applicable formation | Size(inch) | ||
| 114115 | 0.3-0.75 | 180-50 | Soft formation with low compressive strength and high drillability,such as mudstone,clay,chalk,etc | 4 5/8 | 4 3/4 | 5 3/4 |
| 116117 | 0.3-0.8 | 150-70 | Soft formation with low compressive strength and high drillability,such as mudstone,clay,chalk,etc | 5 7/8 | 6 | 6 1/4 |
| 124125 | 0.3-0.85 | 180-60 | Soft formation with low compressive strength and high drillability,such as mudstone,clay,salt,loose stands,soft limestone,etc | 6 1/2 | 6 3/4 | 7 1/2 |
| 126127 | 0.3-0.9 | 150-60 | Soft formation with low compressive strength and high drillability,such as mudstone,clay,salt,loose stands,soft limestone,etc | 7 7/8 | 8 3/8 | 8 1/2 |
| 134135 | 0.35-0.95 | 150-50 | Soft to medium formation with low compressive strength or soft with harder streaks,such as mudstone,shale,soft limestone ,sands,etc | 8 3/4 | 9 1/2 | 9 5/8 |
| 136137 | 0.35-1.0 | 120-60 | Soft to medium formation with low compressive strength or soft with harder streaks,such as mudstone,shale,soft limestone ,sands,etc | 9 7/8 | 10 | 10 5/8 |
| 214215 | 0.4-0.95 | 150-60 | medium hard formation with high compressive strength ,such as medium soft shale,anhydrite,medium soft limestone ,medium soft sandstone as well as thick and hard streaks,etc | 11 | 11 5/8 | 12 1/4 |
| 216217 | 0.4-1.0 | 100-60 | medium hard formation with low compressive strength ,such as medium soft shale,limestone and sandstone as well as thick and hard streaks,etc | 13 5/8 | 13 3/4 | 14 3/4 |
| 244 | 0.35-0.95 | 150-50 | medium hard formation with high compressive strength ,such as hard shale,sands ,limestone,etc | 15 | 15 1/2 | 16 |
| 246247 | 0.4-1.0 | 80-50 | medium hard formation with high compressive strength ,such as hard shale,sands ,limestone,etc | 17 1/2 | 20 | 22 |
| 324325 | 0.4-1.0 | 120-50 | hard formation with high strength and abrasiveness such as hard limestone,hard sands,dolomite,hard shale,etc | 24 | 26 | |
Application for bit
In Petroleum & Gas ,Water well ,Mining and Tectonic Industries ,Oil field, Construction, Geothermal, Directional Boring, and Underground Foundation work.
Photos show:
By sea By plane By DHL ,etc.
Usually packing is wooden box, you can put your need ,we will meet your need first.
1). By Express like TNT, DHL, UPS, Fedex, Aramex, suitable for small bits total weight less than 45kg
2). By Air, suitable for urgent orders, total weight exceed 45kg
3). By ship, suitable for large quantity, will take more shipping time
The certification:
How to choose the type:
shallow well, mainly consider the drilling speed and preventing the mud pack.
deep well,mainly consider the bit footage
When out of the well the outer cutter is broken heavily, should be selected with gage bit
In the ease of deviated section should use small and short cutter bit
In the selection of insert button bit, should use the wedge-shaped cutter
Diamond limestone, appropriate uses double bevel gear, projectile shape tooth bit
Shale more or drilling fluid density is larger, should be selected with a larger amount of slip drill
The formation of limestone, sandstone, should choose smaller slip bit
In drilling hard and high abrasive stratum, appropriate uses ball tooth, double cone tooth head.
1. How to order the products?
Answer:
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. http://hengjibit.en.china.cn/
2. About delivery time?
Answer :
The delivery 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.
3.Can I expect a quality products?
Answer :
Yes. All our activities are accredited to ISO 9001:2008 , both in products and services, at the same time, mature production technology ensuring the quality satisfy international request.
4.Trade Terms:
payment:T/T. 30%deposits,70% before delivering.
If you have any questions ,pl tell me ,it is my pleasure to reply you.