17 1/2 Inch 221IADC Steel Tooth Tricones Bits

Type: Drill Bit
Material: Alloy Steel, Tungsten Carbide
Model Number: Steel Tooth Bit, TCI Bit
Certification: API & ISO
Bearing Type: Sealed Bearing and Non-Sealed Bearing
Suitable Formation: Soft, Medium Soft, Hard, Medium Hard, Very Hard
Customization:

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Basic Info.

Model NO.
215 221
Color
Blue or Red
IADC Code
114~837
Transport Package
Wooden Case
Trademark
HJ
Origin
China
Production Capacity
500

Product Description

17 1/2 inch 221iadc steel tooth tricones bits

Available sizes:From 2 7/8 to 26"  
 
 

Bearing type: sealed bearing and non-sealed bearing 
                           metal sealed journal bearing 
                           rubber sealed journal bearing 

cutting structure:The back cone and the teeth all surface is are hardfaced strengthening, improved steel tooth shape and welding materials,showing teeth higher
Application formation:Soft with low compressive strength and high drillability, such as shale, clay, salt bed and etc
 




IADC 437 517 537 617 637 737
WOB KN/mm (bit dia.) 0.5-0.75 0.5-0.85 0.5-0.85 0.55-0.85 0.55-0.85 0.55-0.85
Lb/in (bit dia.) 2860-4280 2860-4860 2860-4860 3140-4860 3140-4860 3140-4860
r.p.m 70-45 70-45 70-45 70-45 60-40 60-40
17 1/2 Inch 221IADC Steel Tooth Tricones Bits 17 1/2 Inch 221IADC Steel Tooth Tricones Bits 17 1/2 Inch 221IADC Steel Tooth Tricones Bits

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Management System Certification
ISO9001:2008
OEM/ODM Availability
No