Welded Drill Water Hardening Drill Rod Mayhew Junior Friction With Mayhew Regular Pin
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Welded Drill Water Hardening Drill Rod Mayhew Junior Friction With Mayhew Regular Pin
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Features
Basic Infomation
Place of Origin: CHINA
Brand Name: ROSCHEN
Certification: ISO
Model Number: 3 1/2
High Light:

drill extension rod

,

tapered drill bits

Payment & Shipping Terms
Packaging Details: Steel bulk
Supply Ability: 100000 pcs
Specifications
Name: Mayhew Junior Friction Welded Rod
Item: Mayhew Junior Drill Rod
No.: Mayhew Junior Friction Welded Drill Rod
Series: Friction Welded Mayhew Junior Rod
Series No: Mayhew Junior Friction Welded Drill Pipe
Size: 2 - 7/8" Mayhew Junior Friction Welded Drill Rod
Spec.: 2 3/8" Mayhew Jr Drill Pipe
Drilling Rig: Water Well Drilling Rig
Model: Mayhew Drill Rods
Mayhew Rod Size: Mayhew Junior Friction Welded Rod 2 - 7/8" Shoulder 79mm 2 - 3/8" REG
Rod Subs: Drill Rods And Subs
Mayhew Thread API Regular: Mayhew Threads Drill Rods
Model Name: Drill Pipe/Rods
Rig For Sale: MAYHEW RIGS FOR SALE
Product Description

Mayhew Junior Friction Welded Drill Rods 3 1/2 inch with Mayhew Regular Pin 2-3/8" 10 feet length



Description

. ACCURACY: Blueprint drawings are sent before order placement to guarantee the
customer receives the exact product. For custom orders, physical samples are also
offered.

. QUALITY: Utilizing an automated friction-welding process and CNC-machined tool joints
ensure a precision product every time. Checkout our friction-welder here.

. TRACEABILITY: Every joint of pipe is engraved with a unique reference number to
enhance customer service. This establishes 100% accountability of our products and
provides customer peace of mind. 



 

Name A B C D E F G H
TOOL JOINTS:1  
2 3/8 API Regular 2-3/8" 3-1/8" 2-5/8" 3 5 3 60° API 1
2 7/8 API Regular 2-7/8" 3 3/4 3 3 1/2 5 3 60° API 1 1/4
3 1/2 API Regular 3 1/2 4 1/4 3 1/2 3 3/4 5 3 60° API 1 1/2
4 1/2 API Regular 4 1/2 5 1/2 4-5/8" 4 1/4 5 3 60° API 1 1/4
2 3/8 API Internal Flush 2-3/8" 3-3/8" 2-7/8" 3 4 2 60° API 1 3/4
2 7/8 API Internal Flush 2-7/8" 4-1/8" 3 25/64 3 1/2 4 2 60° API 2-1/8"
3 1/2 API Internal Flush 3 1/2 4 3/4 4 1/64 4 4 2 60° API 2 11/16
2 3/8 Mayhew Junior 2-3/8" 2 3/4 2 21/64 2 1/4 4 2 60° Mod. API 1 1/2
2 3/8 Mayhew Regular 2-3/8" 3 1/4 2 35/64 3 4 1 1/2 60° Mod. API 1-5/8"
2 7/8 Mayhew Full Hole 2-7/8" 3 3/4 3 3/64 3-3/8" 4 1 1/2 60° Mod. API 2
2 3/8 Failing Exploration 2-3/8" 2 31/32 2 1/2 2 3/4 4 2 60° Mod. API 1 1/2
2 7/8 Failing Exploration 2-7/8" 3 3/4 3-1/8" 3 1/4 4 2 60° Mod. API 1-7/8"
2 3/8 Hughes Acme Regular 2-3/8" 3-1/8" 219/32 3 4 3-3/8" 29° Acme 1
2 3/8 Winter Weiss 2-3/8" 3 1/4 235/64 3 4 1 1/2 60° Mod. API 1 1/2
2 7/8 Winter Weiss 2-7/8" 37/16 235/64 3 4 1 1/2 60° Mod. API 1 1/2
3 1/2 API Full Hole 3 1/2 4-5/8" 4 3 3/4 5 3 60° Mod. API 27/16
FLUSH JOINT TAPERED THREAD  
United Geophysical (1 11/16 OD) 111/16 111/16 1-3/8" 1 6 3 29° Acme 1


 

Description Pipe OD Pipe Wall Connection OD Connection ID Length(ft)
2-3/8 IF Flush 3 1/2 0.375 3 1/2 1 3/4 20
2-3/8 IF 2 3/8 .280/254 3 1/2 1 3/4 10, 15, 20
2-3/8 FEDP 2 3/8 .280/254 3 1/8 1 1/2 10, 15, 20
2-3/8 Mayhew Jr 2 3/8 .280/254 3 1 1/2 10, 15, 20
2-3/8 Mayhew Jr 2 3/8 0.19 2 3/4 1 1/2 5, 10
2-7/8 Mayhew Jr Pipe Flush 2 7/8 0.362 2 7/8 1 1/2 10, 15, 20
Mayhew Reg. Flush 3 1/2 0.375 3 1/2 1 1/2 20
Mayhew Reg. 2 3/8 .280/254 3 1/2 or 3 1/4 1 1/2 10, 15, 20
2-7/8 IF 4 1/2 0.337 4 1/8 2 1/2 10, 15, 20
3-1/2 IF 5 1/2 0.362 4 3/4 2 11/16 10, 15, 20
3-1/2 API Reg Flush 4 1/2 0.337 4 1/2 1 1/2 10, 15, 20
4-1/2 API Reg Flush 5 1/2 .362/.478 5 1/2 2 1/4 10, 15, 20
AWJ/AW w/Flats 1 3/4 .188/.250 1 3/4 5/8 5,10
NWJ/NW w/Flats 2 5/8 .188/.250 2 5/8 1-1/4 or 1-3/8 5,10

 

 

Tool Joint Connection Mayhew JR, Mayhew Reg, 2-3/8" FEDP, 2-7/8" FEDP, AWJ, NWJ, 2-7/8" IF, 3-1/2" IF, 3-1/2" API Reg, 4-1/2" API Reg, 2-3/8" IF
Pipe OD 2-3/8", 2-7/8", 3-1/2", 4-1/2", 5-1/2", 1-3/4", 2-5/8"
Pipe Wall Thickness .190, .188, .250, .254, .276, .280, .337, .362, .368, .478
Joint Length 5', 10', 15', 20'
Breakout Tool Flats, Lugs, None



 

 

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Fax : 86-021-54380177
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