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Mayhew Junior Threads Mayhew Junior Drill Rods With 55mm Spanner
Flats At Each End For Water Well Drilling
Mayhew Junior Drill rods with 55mm spanner flats at each end and
4mm wall thickness
Mayhew Junior threads Mayhew Junior Drill rods with 55mm spanner
flats at each end for water well drilling
Mayhew Junior Rods
We manufacture drill rods from seamless tubing and hardened &
tempered alloy steel tool joints.
All our tool joints are pre-machined and heat treated before final
machining to ensure accuracy.
All threads are gauged to international standards to ensure
interchangebility on existing rods irrespective of supplier.
Drill pipe is designed to allow the introduction of a drilling
fluid or air to the bit and to provide the mechanism to transfer
energy developed by the drill motor to the bit.
The correct selection of drill pipe, in most instances, determine
how successful you are and what options you have as far as depth,
bore hole size, and push and pull down ability.
The selection of drill pipe is one of the most important decisions
mainly due to cost and rig capability.
Below is a breakdown of what the most popular drill pipes are and
their benefits.
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 |