7 7/8" IADC115 Steel Tooth Tricone Drill Bit

Product Details
Customization: Available
Customized: Customized
Standard: API, ISO 9001
Diamond Member Since 2014

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Management System Certification
ISO9001:2008
OEM/ODM Availability
No
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Basic Info.

Model NO.
7 7/8"
Length
Taper-length
Type
Core Drill Bit
Material
High Carbon Steel
Usage
Well Drilling
Number of Shaft
3
Controlling Mode
Artificial
Structure
Deep Hole Drilling
Layout
Vertical
Automatic Grade
Semiautomatic
Precision
High Precision
Condition
New
Hole Diameter
200mm
Wob
0.4-1.0kn/mm
Transport Package
Wooden Case
Specification
ISO9001
Trademark
hengji
Origin
Hebei Hejian
HS Code
82071990
Production Capacity
1000PCS/Month

Product Description

We guaranteed products at a competitive price and high quality. At present, our products have a very good sale in
Domestic and overseas market. We wish to cooperate with you to create a bright future and mutual benefit. Much appreciation for your prompt attention in advance, we are eager to look forward to hearing from you soon.

Rubber sealed sliding bearing bits are sealed by special type "O". Under the normal rotary speed conditions, they can stand high bit pressure. The bore surface of the cone has been treated with special techniaue in order to improve sliding motion of the bearing. And every performance is improved greatly.
1 O-shape seal ring with high saturation butadience acrylonitrile rubber improved the bearing sealed reliability.
2 To adapt high strength and toughness hard alloy teeth, the shock resistance has been increased and the breakage rate has been decreased.
3 The bearing contact surface, neck journal of jaw have been adapted to wear resistance alloy materials, the special craft processing has been applied in the bore surface of the cone which increases the load capability and the working life.
4 Optimized tooth number of cone and height of tungsten carbide tooth which improved the total cutting property and drilling footage.
5 High-performance lubricant grease has been applied in bearing which increased lubricating and protecting.
IADC WOB(kN/mm) RPM(r/min) Formation
114\115 0.3-0.75 180-50 Soft formation with low compressive strength and high drillability,such as  mudstone,clay,chalk,etc
116\117 0.3-0.8 150-70 Soft formation with low compressive strength and high drillability,such as  mudstone,clay,chalk,etc
124\125 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
126\127 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
134\135 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
136\137 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
214\215 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
216\217 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
244 0.35-0.95 150-50 medium  hard formation with high compressive strength ,such as  hard shale,sands ,limestone,etc
246\247 0.4-1.0 80-50 medium  hard formation with high compressive strength ,such as  hard shale,sands ,limestone,etc
324\325 0.4-1.0 120-50 hard formation with  high strength and abrasiveness such as hard limestone,hard sands,dolomite,hard shale,etc

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